The Portable Foam Plyometric Boxes are versatile and perfect for any training athlete. The boxes, built for performing plyometrics training exercises, are created from high-density foam and last through long hours of fitness training. Offered in four different height options that compose over 20 different stackable heights from 6" to 62" when all four boxes are stacked together. With a 350-pound weight limit, you can be confident that these boxes will fully support you when you land your jump. Specially designed with a slip-free surface, you can have the safety and stability you need in every single jump.