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Space Henge

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Math you can hold.

Order NowAges 5+

▶ Watch the 2-minute Space Henge explainer video!

Connect precision hinges at exact angles to form polygons that fold into stunning 3D structures — from tetrahedrons to soccer‑ball domes. Part art studio, part engineering lab.

FREE FOR TEACHERS

Try it with your students — free pack + free shipping

We'll send you one 60° pack — enough to build tetrahedrons, octahedrons, and an icosahedron with your class. Genuinely free, no catch.

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See it in action

Real hinges, real math, real play. Watch a 14-year-old snap single-angle pieces together into a 3D shape — no screens, no glue, just geometry you can hold.

How It Works

Connect hinges at precise angles to make 2D polygons — then fold them into 3D solids. It's hands‑on geometry.

Colorful geometric tessellation patterns

Patented

Precision Engineering

Our patented hinge system ensures exact angles every time — 60°, 90°, 108°, 120°, 135°, 144°.

2D → 3D

Polygons to Polyhedra

Start with triangles, squares, pentagons — fold into pyramids, cubes, dodecahedra, domes.

STEM

Math You Can Hold

Perfect for classrooms and playrooms. Turn abstract geometry into physical insight.

How Space Henge is made

Every piece is designed, 3D printed, and packed by hand in our Los Angeles workshop.

What Can You Build?

From simple patterns to complex 3D structures!

Triangular Tiling

Triangular Tiling

6 triangles per vertex • 3.3.3.3.3.3

Square Tiling

Square Tiling

4 squares per vertex • 4.4.4.4

Hexagonal Tiling

Hexagonal Tiling

3 hexagons per vertex • 6.6.6

Trihexagonal Tiling

Trihexagonal Tiling

2 triangles, 2 hexagons • 3.6.3.6

Rhombitrihexagonal

Rhombitrihexagonal

1 triangle, 2 squares, 1 hexagon • 3.4.6.4

Truncated Square

Truncated Square

1 square, 2 octagons • 4.8.8

Snub Square

Snub Square

3 triangles, 2 squares • 3.3.4.3.4

Elongated Triangular

Elongated Triangular

3 triangles, 2 squares • 3.3.3.4.4

Snub Hexagonal

Snub Hexagonal

4 triangles, 1 hexagon • 3.3.3.3.6

Platonic Solids

Every vertex is the same AND every face is the same regular polygon.

Tetrahedron - 4-sided pyramid with triangular faces

Tetrahedron

4 triangles • 6 edges • 4 vertices

12 hinges • Vertex: 3.3.3

Cube - 6-sided polyhedron with square faces

Cube

6 squares • 12 edges • 8 vertices

24 hinges • Vertex: 4.4.4

Octahedron - 8-sided polyhedron with triangular faces

Octahedron

8 triangles • 12 edges • 6 vertices

24 hinges • Vertex: 3.3.3.3

Dodecahedron - 12-sided polyhedron with pentagonal faces

Dodecahedron

12 pentagons • 30 edges • 20 vertices

60 hinges • Vertex: 5.5.5

Icosahedron - 20-sided polyhedron with triangular faces

Icosahedron

20 triangles • 30 edges • 12 vertices

60 hinges • Vertex: 3.3.3.3.3

Archimedean Solids

Every vertex is the same and every face is some regular polygon (not all the same one though).

Truncated Tetrahedron - tetrahedron with vertices cut off creating hexagonal and triangular faces

Truncated Tetrahedron

4 triangles, 4 hexagons • 18 edges

36 hinges • Vertex: 3.6.6

Cuboctahedron - polyhedron with 8 triangular and 6 square faces

Cuboctahedron

8 triangles, 6 squares • 24 edges

48 hinges • Vertex: 3.4.3.4

Truncated Cube - cube with corners cut off creating triangular and octagonal faces

Truncated Cube

8 triangles, 6 octagons • 36 edges

72 hinges • Vertex: 3.8.8

Truncated Octahedron - octahedron with vertices cut off creating square and hexagonal faces

Truncated Octahedron

6 squares, 8 hexagons • 36 edges

72 hinges • Vertex: 4.6.6

Rhombicuboctahedron - polyhedron with 8 triangular and 18 square faces

Rhombicuboctahedron

8 triangles, 18 squares • 48 edges

96 hinges • Vertex: 3.4.4.4

Truncated Cuboctahedron - Great Rhombicuboctahedron with squares, hexagons, and octagons

Truncated Cuboctahedron

12 squares, 8 hexagons, 6 octagons • 72 edges

144 hinges • Vertex: 4.6.8

Snub Cube - twisted cube with 32 triangular and 6 square faces

Snub Cube

32 triangles, 6 squares • 60 edges

120 hinges • Vertex: 3.3.3.3.4

Icosidodecahedron - polyhedron with 20 triangular and 12 pentagonal faces

Icosidodecahedron

20 triangles, 12 pentagons • 60 edges

120 hinges • Vertex: 3.5.3.5

Truncated Dodecahedron - dodecahedron with corners cut off creating triangular and decagonal faces

Truncated Dodecahedron

20 triangles, 12 decagons • 90 edges

180 hinges • Vertex: 3.10.10

Truncated Icosahedron (Soccer Ball)

Truncated Icosahedron (Soccer Ball)

12 pentagons, 20 hexagons • 90 edges

180 hinges • Vertex: 5.6.6

Rhombicosidodecahedron - polyhedron with triangles, squares, and pentagons

Rhombicosidodecahedron

20 triangles, 30 squares, 12 pentagons • 120 edges

240 hinges • Vertex: 3.4.5.4

Snub Dodecahedron - twisted dodecahedron with 80 triangular and 12 pentagonal faces

Snub Dodecahedron

80 triangles, 12 pentagons • 150 edges

300 hinges • Vertex: 3.3.3.3.5

Rhombitruncated Icosidodecahedron (also called truncated icosidodecahedron or great rhombicosidodecahedron) with squares, hexagons, and decagons

Rhombitruncated Icosidodecahedron

30 squares, 20 hexagons, 12 decagons • 180 edges

360 hinges • Vertex: 4.6.10

Johnson Solids

Every face is a regular polygon but the vertexes can be different.

Square Pyramid - Johnson solid J1 with 4 triangles, 1 square

Square Pyramid

4 triangles, 1 square • 8 edges

16 hinges • J1

Pentagonal Pyramid - Johnson solid J2 with 5 triangles, 1 pentagon

Pentagonal Pyramid

5 triangles, 1 pentagon • 10 edges

20 hinges • J2

Triangular Cupola - Johnson solid J3 with 4 triangles, 3 squares, 1 hexagon

Triangular Cupola

4 triangles, 3 squares, 1 hexagon • 15 edges

30 hinges • J3

Square Cupola - Johnson solid J4 with 4 triangles, 5 squares, 1 octagon

Square Cupola

4 triangles, 5 squares, 1 octagon • 20 edges

40 hinges • J4

Pentagonal Cupola - Johnson solid J5 with 5 triangles, 5 squares, 1 pentagon, 1 decagon

Pentagonal Cupola

5 triangles, 5 squares, 1 pentagon, 1 decagon • 25 edges

50 hinges • J5

Pentagonal Rotunda - Johnson solid J6 with 10 triangles, 6 pentagons, 1 decagon

Pentagonal Rotunda

10 triangles, 6 pentagons, 1 decagon • 35 edges

70 hinges • J6

Elongated Triangular Pyramid - Johnson solid J7 with 4 triangles, 3 squares

Elongated Triangular Pyramid

4 triangles, 3 squares • 12 edges

24 hinges • J7

Elongated Square Pyramid - Johnson solid J8 with 4 triangles, 5 squares

Elongated Square Pyramid

4 triangles, 5 squares • 16 edges

32 hinges • J8

Elongated Pentagonal Pyramid - Johnson solid J9 with 5 triangles, 5 squares, 1 pentagon

Elongated Pentagonal Pyramid

5 triangles, 5 squares, 1 pentagon • 20 edges

40 hinges • J9

Gyroelongated Square Pyramid - Johnson solid J10 with 12 triangles, 1 square

Gyroelongated Square Pyramid

12 triangles, 1 square • 20 edges

40 hinges • J10

Gyroelongated Pentagonal Pyramid - Johnson solid J11 with 15 triangles, 1 pentagon

Gyroelongated Pentagonal Pyramid

15 triangles, 1 pentagon • 25 edges

50 hinges • J11

Triangular Bipyramid - Johnson solid J12 with 6 triangles

Triangular Bipyramid

6 triangles • 9 edges

18 hinges • J12

Pentagonal Bipyramid - Johnson solid J13 with 10 triangles

Pentagonal Bipyramid

10 triangles • 15 edges

30 hinges • J13

Elongated Triangular Bipyramid - Johnson solid J14 with 6 triangles, 3 squares

Elongated Triangular Bipyramid

6 triangles, 3 squares • 15 edges

30 hinges • J14

Elongated Square Bipyramid - Johnson solid J15 with 8 triangles, 4 squares

Elongated Square Bipyramid

8 triangles, 4 squares • 20 edges

40 hinges • J15

Elongated Pentagonal Bipyramid - Johnson solid J16 with 10 triangles, 5 squares

Elongated Pentagonal Bipyramid

10 triangles, 5 squares • 25 edges

50 hinges • J16

Gyroelongated Square Bipyramid - Johnson solid J17 with 16 triangles

Gyroelongated Square Bipyramid

16 triangles • 24 edges

48 hinges • J17

Elongated Triangular Cupola - Johnson solid J18 with 4 triangles, 9 squares, 1 hexagon

Elongated Triangular Cupola

4 triangles, 9 squares, 1 hexagon • 27 edges

54 hinges • J18

Elongated Square Cupola - Johnson solid J19 with 4 triangles, 13 squares, 1 octagon

Elongated Square Cupola

4 triangles, 13 squares, 1 octagon • 36 edges

72 hinges • J19

Elongated Pentagonal Cupola - Johnson solid J20 with 5 triangles, 15 squares, 1 pentagon, 1 decagon

Elongated Pentagonal Cupola

5 triangles, 15 squares, 1 pentagon, 1 decagon • 45 edges

90 hinges • J20

Elongated Pentagonal Rotunda - Johnson solid J21 with 10 triangles, 10 squares, 6 pentagons, 1 decagon

Elongated Pentagonal Rotunda

10 triangles, 10 squares, 6 pentagons, 1 decagon • 55 edges

110 hinges • J21

Gyroelongated Triangular Cupola - Johnson solid J22 with 16 triangles, 3 squares, 1 hexagon

Gyroelongated Triangular Cupola

16 triangles, 3 squares, 1 hexagon • 33 edges

66 hinges • J22

Gyroelongated Square Cupola - Johnson solid J23 with 20 triangles, 5 squares, 1 octagon

Gyroelongated Square Cupola

20 triangles, 5 squares, 1 octagon • 44 edges

88 hinges • J23

Gyroelongated Pentagonal Cupola - Johnson solid J24 with 25 triangles, 5 squares, 1 pentagon, 1 decagon

Gyroelongated Pentagonal Cupola

25 triangles, 5 squares, 1 pentagon, 1 decagon • 55 edges

110 hinges • J24

Gyroelongated Pentagonal Rotunda - Johnson solid J25 with 30 triangles, 6 pentagons, 1 decagon

Gyroelongated Pentagonal Rotunda

30 triangles, 6 pentagons, 1 decagon • 65 edges

130 hinges • J25

Gyrobifastigium - Johnson solid J26 with 4 triangles, 4 squares

Gyrobifastigium

4 triangles, 4 squares • 14 edges

28 hinges • J26

Triangular Orthobicupola - Johnson solid J27 with 8 triangles, 6 squares

Triangular Orthobicupola

8 triangles, 6 squares • 24 edges

48 hinges • J27

Square Orthobicupola - Johnson solid J28 with 8 triangles, 10 squares

Square Orthobicupola

8 triangles, 10 squares • 32 edges

64 hinges • J28

Square Gyrobicupola - Johnson solid J29 with 8 triangles, 10 squares

Square Gyrobicupola

8 triangles, 10 squares • 32 edges

64 hinges • J29

Pentagonal Orthobicupola - Johnson solid J30 with 10 triangles, 10 squares, 2 pentagons

Pentagonal Orthobicupola

10 triangles, 10 squares, 2 pentagons • 40 edges

80 hinges • J30

Pentagonal Gyrobicupola - Johnson solid J31 with 10 triangles, 10 squares, 2 pentagons

Pentagonal Gyrobicupola

10 triangles, 10 squares, 2 pentagons • 40 edges

80 hinges • J31

Pentagonal Orthocupolarotunda - Johnson solid J32 with 15 triangles, 5 squares, 7 pentagons

Pentagonal Orthocupolarotunda

15 triangles, 5 squares, 7 pentagons • 50 edges

100 hinges • J32

Pentagonal Gyrocupolarotunda - Johnson solid J33 with 15 triangles, 5 squares, 7 pentagons

Pentagonal Gyrocupolarotunda

15 triangles, 5 squares, 7 pentagons • 50 edges

100 hinges • J33

Pentagonal Orthobirotunda - Johnson solid J34 with 20 triangles, 12 pentagons

Pentagonal Orthobirotunda

20 triangles, 12 pentagons • 60 edges

120 hinges • J34

Elongated Triangular Orthobicupola - Johnson solid J35 with 8 triangles, 12 squares

Elongated Triangular Orthobicupola

8 triangles, 12 squares • 36 edges

72 hinges • J35

Elongated Triangular Gyrobicupola - Johnson solid J36 with 8 triangles, 12 squares

Elongated Triangular Gyrobicupola

8 triangles, 12 squares • 36 edges

72 hinges • J36

Elongated Square Gyrobicupola - Johnson solid J37 with 8 triangles, 18 squares

Elongated Square Gyrobicupola

8 triangles, 18 squares • 48 edges

96 hinges • J37

Elongated Pentagonal Orthobicupola - Johnson solid J38 with 10 triangles, 20 squares, 2 pentagons

Elongated Pentagonal Orthobicupola

10 triangles, 20 squares, 2 pentagons • 60 edges

120 hinges • J38

Elongated Pentagonal Gyrobicupola - Johnson solid J39 with 10 triangles, 20 squares, 2 pentagons

Elongated Pentagonal Gyrobicupola

10 triangles, 20 squares, 2 pentagons • 60 edges

120 hinges • J39

Elongated Pentagonal Orthocupolarotunda - Johnson solid J40 with 15 triangles, 15 squares, 7 pentagons

Elongated Pentagonal Orthocupolarotunda

15 triangles, 15 squares, 7 pentagons • 70 edges

140 hinges • J40

Elongated Pentagonal Gyrocupolarotunda - Johnson solid J41 with 15 triangles, 15 squares, 7 pentagons

Elongated Pentagonal Gyrocupolarotunda

15 triangles, 15 squares, 7 pentagons • 70 edges

140 hinges • J41

Elongated Pentagonal Orthobirotunda - Johnson solid J42 with 20 triangles, 10 squares, 12 pentagons

Elongated Pentagonal Orthobirotunda

20 triangles, 10 squares, 12 pentagons • 80 edges

160 hinges • J42

Elongated Pentagonal Gyrobirotunda - Johnson solid J43 with 20 triangles, 10 squares, 12 pentagons

Elongated Pentagonal Gyrobirotunda

20 triangles, 10 squares, 12 pentagons • 80 edges

160 hinges • J43

Gyroelongated Triangular Bicupola - Johnson solid J44 with 20 triangles, 6 squares

Gyroelongated Triangular Bicupola

20 triangles, 6 squares • 42 edges

84 hinges • J44

Gyroelongated Square Bicupola - Johnson solid J45 with 24 triangles, 10 squares

Gyroelongated Square Bicupola

24 triangles, 10 squares • 56 edges

112 hinges • J45

Gyroelongated Pentagonal Bicupola - Johnson solid J46 with 30 triangles, 10 squares, 2 pentagons

Gyroelongated Pentagonal Bicupola

30 triangles, 10 squares, 2 pentagons • 70 edges

140 hinges • J46

Gyroelongated Pentagonal Cupolarotunda - Johnson solid J47 with 35 triangles, 5 squares, 7 pentagons

Gyroelongated Pentagonal Cupolarotunda

35 triangles, 5 squares, 7 pentagons • 80 edges

160 hinges • J47

Gyroelongated Pentagonal Birotunda - Johnson solid J48 with 40 triangles, 12 pentagons

Gyroelongated Pentagonal Birotunda

40 triangles, 12 pentagons • 90 edges

180 hinges • J48

Augmented Triangular Prism - Johnson solid J49 with 6 triangles, 2 squares

Augmented Triangular Prism

6 triangles, 2 squares • 13 edges

26 hinges • J49

Biaugmented Triangular Prism - Johnson solid J50 with 10 triangles, 1 square

Biaugmented Triangular Prism

10 triangles, 1 square • 17 edges

34 hinges • J50

Triaugmented Triangular Prism - Johnson solid J51 with 14 triangles

Triaugmented Triangular Prism

14 triangles • 21 edges

42 hinges • J51

Augmented Pentagonal Prism - Johnson solid J52 with 4 triangles, 4 squares, 2 pentagons

Augmented Pentagonal Prism

4 triangles, 4 squares, 2 pentagons • 19 edges

38 hinges • J52

Biaugmented Pentagonal Prism - Johnson solid J53 with 8 triangles, 3 squares, 2 pentagons

Biaugmented Pentagonal Prism

8 triangles, 3 squares, 2 pentagons • 23 edges

46 hinges • J53

Augmented Hexagonal Prism - Johnson solid J54 with 4 triangles, 5 squares, 2 hexagons

Augmented Hexagonal Prism

4 triangles, 5 squares, 2 hexagons • 22 edges

44 hinges • J54

Parabiaugmented Hexagonal Prism - Johnson solid J55 with 8 triangles, 4 squares, 2 hexagons

Parabiaugmented Hexagonal Prism

8 triangles, 4 squares, 2 hexagons • 26 edges

52 hinges • J55

Metabiaugmented Hexagonal Prism - Johnson solid J56 with 8 triangles, 4 squares, 2 hexagons

Metabiaugmented Hexagonal Prism

8 triangles, 4 squares, 2 hexagons • 26 edges

52 hinges • J56

Triaugmented Hexagonal Prism - Johnson solid J57 with 12 triangles, 3 squares, 2 hexagons

Triaugmented Hexagonal Prism

12 triangles, 3 squares, 2 hexagons • 30 edges

60 hinges • J57

Augmented Dodecahedron - Johnson solid J58 with 5 triangles, 11 pentagons

Augmented Dodecahedron

5 triangles, 11 pentagons • 35 edges

70 hinges • J58

Parabiaugmented Dodecahedron - Johnson solid J59 with 10 triangles, 10 pentagons

Parabiaugmented Dodecahedron

10 triangles, 10 pentagons • 40 edges

80 hinges • J59

Metabiaugmented Dodecahedron - Johnson solid J60 with 10 triangles, 10 pentagons

Metabiaugmented Dodecahedron

10 triangles, 10 pentagons • 40 edges

80 hinges • J60

Triaugmented Dodecahedron - Johnson solid J61 with 15 triangles, 9 pentagons

Triaugmented Dodecahedron

15 triangles, 9 pentagons • 45 edges

90 hinges • J61

Metabidiminished Icosahedron - Johnson solid J62 with 10 triangles, 2 pentagons

Metabidiminished Icosahedron

10 triangles, 2 pentagons • 20 edges

40 hinges • J62

Tridiminished Icosahedron - Johnson solid J63 with 5 triangles, 3 pentagons

Tridiminished Icosahedron

5 triangles, 3 pentagons • 15 edges

30 hinges • J63

Augmented Tridiminished Icosahedron - Johnson solid J64 with 7 triangles, 3 pentagons

Augmented Tridiminished Icosahedron

7 triangles, 3 pentagons • 18 edges

36 hinges • J64

Augmented Truncated Tetrahedron - Johnson solid J65 with 8 triangles, 3 squares, 3 hexagons

Augmented Truncated Tetrahedron

8 triangles, 3 squares, 3 hexagons • 27 edges

54 hinges • J65

Augmented Truncated Cube - Johnson solid J66 with 12 triangles, 5 squares, 5 octagons

Augmented Truncated Cube

12 triangles, 5 squares, 5 octagons • 48 edges

96 hinges • J66

Biaugmented Truncated Cube - Johnson solid J67 with 16 triangles, 10 squares, 4 octagons

Biaugmented Truncated Cube

16 triangles, 10 squares, 4 octagons • 60 edges

120 hinges • J67

Augmented Truncated Dodecahedron - Johnson solid J68 with 25 triangles, 5 squares, 1 pentagon, 11 decagons

Augmented Truncated Dodecahedron

25 triangles, 5 squares, 1 pentagon, 11 decagons • 105 edges

210 hinges • J68

Parabiaugmented Truncated Dodecahedron - Johnson solid J69 with 30 triangles, 10 squares, 2 pentagons, 10 decagons

Parabiaugmented Truncated Dodecahedron

30 triangles, 10 squares, 2 pentagons, 10 decagons • 120 edges

240 hinges • J69

Metabiaugmented Truncated Dodecahedron - Johnson solid J70 with 30 triangles, 10 squares, 2 pentagons, 10 decagons

Metabiaugmented Truncated Dodecahedron

30 triangles, 10 squares, 2 pentagons, 10 decagons • 120 edges

240 hinges • J70

Triaugmented Truncated Dodecahedron - Johnson solid J71 with 35 triangles, 15 squares, 3 pentagons, 9 decagons

Triaugmented Truncated Dodecahedron

35 triangles, 15 squares, 3 pentagons, 9 decagons • 135 edges

270 hinges • J71

Gyrate Rhombicosidodecahedron - Johnson solid J72 with 20 triangles, 30 squares, 12 pentagons

Gyrate Rhombicosidodecahedron

20 triangles, 30 squares, 12 pentagons • 120 edges

240 hinges • J72

Parabigyrate Rhombicosidodecahedron - Johnson solid J73 with 20 triangles, 30 squares, 12 pentagons

Parabigyrate Rhombicosidodecahedron

20 triangles, 30 squares, 12 pentagons • 120 edges

240 hinges • J73

Metabigyrate Rhombicosidodecahedron - Johnson solid J74 with 20 triangles, 30 squares, 12 pentagons

Metabigyrate Rhombicosidodecahedron

20 triangles, 30 squares, 12 pentagons • 120 edges

240 hinges • J74

Trigyrate Rhombicosidodecahedron - Johnson solid J75 with 20 triangles, 30 squares, 12 pentagons

Trigyrate Rhombicosidodecahedron

20 triangles, 30 squares, 12 pentagons • 120 edges

240 hinges • J75

Diminished Rhombicosidodecahedron - Johnson solid J76 with 15 triangles, 25 squares, 11 pentagons, 1 decagon

Diminished Rhombicosidodecahedron

15 triangles, 25 squares, 11 pentagons, 1 decagon • 105 edges

210 hinges • J76

Paragyrate Diminished Rhombicosidodecahedron - Johnson solid J77 with 15 triangles, 25 squares, 11 pentagons, 1 decagon

Paragyrate Diminished Rhombicosidodecahedron

15 triangles, 25 squares, 11 pentagons, 1 decagon • 105 edges

210 hinges • J77

Metagyrate Diminished Rhombicosidodecahedron - Johnson solid J78 with 15 triangles, 25 squares, 11 pentagons, 1 decagon

Metagyrate Diminished Rhombicosidodecahedron

15 triangles, 25 squares, 11 pentagons, 1 decagon • 105 edges

210 hinges • J78

Bigyrate Diminished Rhombicosidodecahedron - Johnson solid J79 with 15 triangles, 25 squares, 11 pentagons, 1 decagon

Bigyrate Diminished Rhombicosidodecahedron

15 triangles, 25 squares, 11 pentagons, 1 decagon • 105 edges

210 hinges • J79

Parabidiminished Rhombicosidodecahedron - Johnson solid J80 with 10 triangles, 20 squares, 10 pentagons, 2 decagons

Parabidiminished Rhombicosidodecahedron

10 triangles, 20 squares, 10 pentagons, 2 decagons • 90 edges

180 hinges • J80

Metabidiminished Rhombicosidodecahedron - Johnson solid J81 with 10 triangles, 20 squares, 10 pentagons, 2 decagons

Metabidiminished Rhombicosidodecahedron

10 triangles, 20 squares, 10 pentagons, 2 decagons • 90 edges

180 hinges • J81

Gyrate Bidiminished Rhombicosidodecahedron - Johnson solid J82 with 10 triangles, 20 squares, 10 pentagons, 2 decagons

Gyrate Bidiminished Rhombicosidodecahedron

10 triangles, 20 squares, 10 pentagons, 2 decagons • 90 edges

180 hinges • J82

Tridiminished Rhombicosidodecahedron - Johnson solid J83 with 5 triangles, 15 squares, 9 pentagons, 3 decagons

Tridiminished Rhombicosidodecahedron

5 triangles, 15 squares, 9 pentagons, 3 decagons • 75 edges

150 hinges • J83

Snub Disphenoid - Johnson solid J84 with 12 triangles

Snub Disphenoid

12 triangles • 18 edges

36 hinges • J84

Snub Square Antiprism - Johnson solid J85 with 24 triangles, 2 squares

Snub Square Antiprism

24 triangles, 2 squares • 40 edges

80 hinges • J85

Sphenocorona - Johnson solid J86 with 12 triangles, 2 squares

Sphenocorona

12 triangles, 2 squares • 22 edges

44 hinges • J86

Augmented Sphenocorona - Johnson solid J87 with 16 triangles, 1 square

Augmented Sphenocorona

16 triangles, 1 square • 26 edges

52 hinges • J87

Sphenomegacorona - Johnson solid J88 with 16 triangles, 2 squares

Sphenomegacorona

16 triangles, 2 squares • 28 edges

56 hinges • J88

Hebesphenomegacorona - Johnson solid J89 with 18 triangles, 3 squares

Hebesphenomegacorona

18 triangles, 3 squares • 33 edges

66 hinges • J89

Disphenocingulum - Johnson solid J90 with 20 triangles, 4 squares

Disphenocingulum

20 triangles, 4 squares • 38 edges

76 hinges • J90

Bilunabirotunda - Johnson solid J91 with 8 triangles, 2 squares, 4 pentagons

Bilunabirotunda

8 triangles, 2 squares, 4 pentagons • 26 edges

52 hinges • J91

Triangular Hebesphenorotunda - Johnson solid J92 with 13 triangles, 3 squares, 3 pentagons, 1 hexagon

Triangular Hebesphenorotunda

13 triangles, 3 squares, 3 pentagons, 1 hexagon • 36 edges

72 hinges • J92

Prisms & Antiprisms

Not considered Johnson solids — prisms and antiprisms are their own family!

Triangular Prism - 2 triangles, 3 squares

Triangular Prism

2 triangles, 3 squares • 9 edges

18 hinges • Vertex: 4.4.3

Pentagonal Prism - 2 pentagons, 5 squares

Pentagonal Prism

2 pentagons, 5 squares • 15 edges

30 hinges • Vertex: 4.4.5

Hexagonal Prism - 2 hexagons, 6 squares

Hexagonal Prism

2 hexagons, 6 squares • 18 edges

36 hinges • Vertex: 4.4.6

Octagonal Prism - 2 octagons, 8 squares

Octagonal Prism

2 octagons, 8 squares • 24 edges

48 hinges • Vertex: 4.4.8

Decagonal Prism - 2 decagons, 10 squares

Decagonal Prism

2 decagons, 10 squares • 30 edges

60 hinges • Vertex: 4.4.10

Square Antiprism - 8 triangles, 2 squares

Square Antiprism

8 triangles, 2 squares • 16 edges

32 hinges • Vertex: 3.3.3.4

Pentagonal Antiprism - 10 triangles, 2 pentagons

Pentagonal Antiprism

10 triangles, 2 pentagons • 20 edges

40 hinges • Vertex: 3.3.3.5

Hexagonal Antiprism - 12 triangles, 2 hexagons

Hexagonal Antiprism

12 triangles, 2 hexagons • 24 edges

48 hinges • Vertex: 3.3.3.6

Octagonal Antiprism - 16 triangles, 2 octagons

Octagonal Antiprism

16 triangles, 2 octagons • 32 edges

64 hinges • Vertex: 3.3.3.8

Decagonal Antiprism - 20 triangles, 2 decagons

Decagonal Antiprism

20 triangles, 2 decagons • 40 edges

80 hinges • Vertex: 3.3.3.10

Stellated Solids

Non-convex, these are ones where every face is an equilateral triangle!

Stella Octangula - 24 equilateral triangles

Stella Octangula

24 triangles • 36 edges

72 hinges • Non-uniform vertices

Augmented Icosahedron - 60 equilateral triangles

Augmented Icosahedron

60 triangles • 90 edges

180 hinges • Non-uniform vertices

Stellated Dodecahedron - 60 equilateral triangles

Stellated Dodecahedron (60°)

60 triangles • 90 edges

180 hinges • Non-uniform vertices

... AND EVERYTHING ELSE!

For Educators

Bulk discounts for classrooms and makerspaces.

Students learning with Space Henge

Why classrooms love Space Henge

Hands‑on geometry manipulatives
Open‑ended challenges for all ages
Fast setup, durable parts, easy cleanup
Standards-aligned STEM learning

Contact us for bulk orders (10+ sets), Title I pricing, and district POs.

Free Lesson Plans

Classroom-ready and standards-aligned, with a student worksheet and answer key. Every activity uses only the pieces in a Space Henge kit.

Tile the World lesson plan, first page

Tile the World

Tessellations & the 360° rule

Grades 4–9 · 2 class periods · 7 pages

Why only triangles, squares and hexagons tile alone
Build 6 semi-regular tilings
The “impossible corner” that adds to 360° but never tiles
Extension: domes, flat floors and saddles

Download PDF

The Trouble with Five lesson plan, first page

The Trouble with Five

Why pentagons won’t tile a floor

Grades 6–10 · 2 class periods · 6 pages

Why 3 pentagons leave a gap and 4 overlap
Build Dürer’s flower and Kepler’s decagon ring
Pentagons that do tile: sphere and saddle
Penrose tilings, quasicrystals, the golden ratio

Download PDF

Angles You Can Hold lesson plan, first page

Angles You Can Hold

Polygons & the five Platonic solids

Grades 6–10 · 2–3 class periods · 7 pages

Discover the interior-angle formula from the hinges
Why there are exactly five Platonic solids
Euler’s formula and Descartes’ 720° rule
Capstone: the 13 Archimedean solids

Download PDF

Educational Videos

Short animated explainers for the classroom, each two to two and a half minutes, with captions. Every idea in them can be built with a Space Henge kit.

Duals

Swap faces for corners and every Platonic solid turns into its partner. Why the tetrahedron is its own dual. · 2:21

Why Triangles Are Strong

Why a square leans, a hexagon flops and a triangle holds, plus the counting rule engineers use to tell a rigid frame from a wobbly one. · 2:23

Capping Faces

Put a pyramid of triangles on every face. How far can you go, and when does it turn into a fractal? · 2:28

Truncation

Slice off the corners: pentagons become decagons, the icosahedron becomes a soccer ball, and everything gets rounder. · 1:58

Merging Solids

Merge a cube with an octahedron and you get a cuboctahedron. Meet the 13 Archimedean solids. · 2:07

Snub and Rhombi Solids

Explode a solid apart and fill the gaps with squares or twisted triangles, and get left- and right-handed shapes. · 2:00

The Johnson Solids

92 shapes with regular faces whose corners don't all match: cupolas, augmented and diminished solids, and the only 8 convex all-triangle solids. · 2:24

Prisms and Antiprisms

Copy a polygon and join the two with squares or a twisted band of triangles. Meet a hidden octahedron and icosahedron, and a ten-sided die. · 1:56

FAQ

What ages is this for?

Recommended for ages 5+. Contains small parts, so not for children under 3. Teens and adults love the advanced builds.

Does everything work together?

Yes — all rods and henges are cross‑compatible. Mix Kilo Packs and $12 packs for unlimited building potential.

What's your return policy?

If you're not completely satisfied with your Space Henge set, you may return (you'll have to pay shipping) it in original condition within 30 days of delivery for a full refund!

What about replacements?

We have a lifetime guarantee! If any pieces break, we'll replace them free. See details below.

Lifetime Guarantee

We stand behind every piece we make.

If any of your Space Henge pieces ever break, just let us know and we'll send you replacement parts absolutely free.

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Build Your Kit

Every pack is 60 hinges + 32 black rods (octagons: 64 hinges) for $12. Grab the Kilo Pack or mix any angles you like.

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Kilo Pack

12 packs · 724 hinges + 384 rods · 1,108 pieces

4× Triangle 2× Square 2× Hexagon 2× Decagon 1× Pentagon 1× Octagon

$144 $120

2 packs free with buy 4, get 1 free

Individual packs · $12 each

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Child building with Space Henge

Discover the joy of building mathematical masterpieces!