This is the most baffling and the easiest routine ever devised for sponge ball manipulations. Balls VANISH from the performer's hands and APPEAR in a spectator's hand, the performer's hands being shown empty. Balls not only vanish and appear but they multiply. In fact, it's almost a whole act in itself and great for close up. Machine made sponge balls made perfectly round and of a uniform size. Made of foam material.