The Hoberman Sphere™
SKU/Product Number
TB18334
In Stock
$36.50
Grades 1-12.
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.
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