Meet the 3 heights in 1, anti-slip plyo box solution for your gym. We cut corners with this design (literally) to avoid painful slips during box jumps while providing an inner brace and no-slip PVC for extra security while you crank your tunes and go crazy.Can't finish your set at the current height? No problem-o, pal. Just flip to one of the other heights and get down with your bad self. This versatile home gym staple has a 400lb capacity and unlocks step-ups, box jumps, incline and decline push-ups, tricep dips, and the dreaded Bulgarian split squat. Lucky you!We ship these boxes unassembled to save on shipping, but no carpentry background is required to get these thrown together. Grab a screwdriver, and 20 minutes later, you're good to go.IMPORTANT: The extra-small plyo box (16″ x 14″ x 12″) does not have an inner brace.