Magnet Balls Neocube Material: NdFeB magnet, 216+4pcs/set Color: nickel,black, ... ,buckyballs,Neocube is composed of 216 individual high-energy magnet balls. The following can be give you a deep understanding of ... of funs and imagination.NeoCube is perfect for gaming, expression, stress relief, boredom busting, dual hemispherical brain stimulation, and much more ...