The Body Sport Deluxe Plyometric Box Set contains 4 boxes of varying heights. Use them for a variety of plyometric routines, box jumps, agility and stamina training workouts. Each square plyometric box provides a generous landing surface and features 6 mm solid, non-slip rubber pads for optimal traction and impact-absorption. The Body Sport Deluxe Plyometric Box Set are stackable for easy, space-saving storage and come in 12", 18", 24" and 30" sizes for all your tough training regimes.