The Hoberman Sphere™

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Product Number: TB18334

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Combines mathematics, science, and technical education into a magical motion of surprising simplicity, beauty, and fun. Its system of polymer links expands and contracts almost effortlessly, changing in volume 30 times. A great tool for teaching physical science and technical education. Expands from 9-1/2 in. to 30 in. Grade 1 and up.

Brand  :       The Hoberman Sphere
Item Weight  :       3
Prop 65  :      


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