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The IQ Ball is a brain teaser of a puzzle. This handheld fidget toy is portable and great to have on hand to help pass the time. The IQ Ball is double sided, each side has two sets of coloured spheres. The middle spins and mixes coloured spheres from one side to the other. The goal of the puzzle is to return each side (front and back and right and left) to one colour of spheres only.