The VTX Medicine Ball Display Pack is a complete set of six medicine balls and an attractive display/storage rack, all in one package. Made of thick durable rubber for bounce-back, each ball is re-inflatable and has a textured surface for a solid grip. Each set contains a display rack and one each of the following size medicine ball: 4 lb., 6 lb., 8 lb., 10 lb., 12 lb., and 15 lb. 1 year warranty against breakage.