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Hoberman Sphere

You may have seen this amazing expanding structure on the cover of Discover magazine. Just pull on any hub, and this colorful sphere of polymer links grows from 9.5" to 30" in diameter. With a gentle push it always returns to its original shape. Can you say "icosadodecahedron"? An educational booklet and a sheet of games are included.



D430$34.95

 

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