TKO Stackable Foam Plyo BoxesThis set of plyo boxes provides multiple sizes of foam stackable boxes that will allow for a variety of training heights to accommodate all user abilities. The strong durable foam core ensures soft and safe landings, while the durable 18oz matted vinyl coating provides extra protection. The large hook and loop on two sides runs for the entire edge for a secure non slip hold. Handles make for easy transport and setup.