Develop faster speed, more powerful strength, and split-second explosiveness on the Stamina ® X Adjustable Height Plyo Box. It gives you four different heights without having to stack and unstack cumbersome plyo boxes. Set it up for plyo jumps or use it for dips, pushups, and other upper body plyometrics. The height easily adjusts in seconds between 12", 16" 20", and 24" high. Sturdy steel frame and non-slip rubber landing surface. Measures 27" x 18" x 24". Weight 40 lbs. Maximum user capacity 300 lbs. No assembly required. This is an over-sized item. Extra shipping charges for this item: $+10.