Hoberman Sphere

HS104

The polymer links allow the sphere to change in volume 30 times larger.

Features:
– Includes an educational booklet about the sphere, a 21 Cool Things To Do activity sheet, a pulley, and hanging hardware.
– Instructions for hanging as a cool kinetic energy mobile.
– Magically expands from 9.5″ to 30″
– For ages 4+

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