Durable Body-Solid® plyo boxes are a must-have training tool for explosive jump and speed training. Athletes use these boxes for forward, lateral and other plyometric jumping drills. Increase not only in your vertical jumping ability, but also drastically increase foot speed, cardiovascular endurance, overall leg strength and health and "out of the blocks" explosion. The number of exercises you can perform are endless when using metal plyo boxes. Professional, college, high school and even grade school athletes can improve performance and increase speed agility and all-around fitness levels with plyometric training. Suitable for stacking and easy storage. Feature heavy-duty 1-in. square steel construction and a red scratch-proof powder coat finish. The platforms on this plyo box are reinforced 1/2-in. plywood covered in a nonslip rubber surface. 300 lb. weight capacity. Built to withstand years of use by athletes of all sizes. Some assembly is necessary.