The Plyo-Safe™ line of plyo-boxes continues to revolutionize the plyometric industry offering the ultimate combination of durability, stability, and safety. With an extra-large landing surface of 30" x 36", athletes' fears of missing the box are eliminated. Made with a 100% foam core that will not break down, delaminate, or soften over time and a 21 oz. knife coated vinyl with built-in bacterial inhibitor. Each box has three 2" strips of velcro to enable stacking and prevent the boxes from slipping apart during use. 12" high.