Professional gym-quality plyometric boxes designed to be a fixture in your gym, training room or home for years to come Constructed with 100% solid closed-cell PP foam. Won't sag or break down over time like cheaper versions with layered foams Premium high-density textured vinyl cover provides the ideal surface for both grip and comfort Each box features 6 full-length hook & loop sections to enable secure stacking Integrated handles allow for easy positioning, carrying and storage between workouts Rounded corners for a sleek look and added safety Each box measures 36" x 30" (91cm x 76cm)