Have the power of Magneto and be able to cotrol 216 tiny magnetic balls under your command. Play with them, build things with them, make things with them or just fiddle with them. These neodymium magnets are super strong and make the unltimate desk toy. Relieve stress and boredom and feel these tiny magnetic spheres rolling between your fingers. Create, large 3D structures or just fiddle around whilst work. These tiny neodymium magnetic spheres can keep you from boredom for hours!