Specially designed for high-impact use, the Body Sport Standard Plyo Box Set is extremely durable to withstand the most intensive workouts. Improve jumping ability (lateral and forward), overall body strength, reaction times and muscle explosiveness by training on a series of graduated heights. The standard plyo box set comes with 12", 18", 24", 30" and 36" boxes. Each box has a solid landing surface covered with a 4 mm solid, non-skid rubber pad for safety and security. Engineered at an angle to prevent tipping, the Body Sport Standard Plyo Box Set is easily stackable for space-saving storage.