Made up of thirty magnetic rhombi, hands of all sizes can take apart and rebuild this ball in endless ways to form amazing designs.

Boost logic, creativity, focus, and more, all with the simple yet fascinating fun of this ball! Office & Desk Toys. Sensory Toys . Made up of thirty magnetic rhombi, hands of all sizes can take apart and rebuild this ball in endless ways to form amazing designs. Roger von Oech's Ball of Whacks - Multi-Color - - Fat Brain Toys.

Toys. Roger von Oech's Ball of Whacks - Multi-Color - - Fat Brain Toys.