Versatile Training Equipment AmazonUs/YES4All Foam Plyo Box is an essential gear in your strength training. You can either use the Plyo Box for traditional box jumps or incorporate box push-ups, step-ups, lunges and dips into your workout routine. Use Plyo Box to boost your jumping ability and increase foot speed, agility, cardiovascular endurance, total body strength, power and explosiveness. High Quality Foam and Durable PVC Cover For Extra Safety High dense soft foam protects your joints while jumping and remains firm enough to perform multiple plyometric movements. PVC cover prevents you from slipping and makes it easier on your skin and shins on missed steps. Easy To Adjust and Customize Your Workout With this simple yet have-it-all Plyo Box, you can exercise at 3 different difficulty levels from beginning to advanced. The unique three-sided design comes with 6 soft sides PVC cover to minimize the risks of banged shins and scrapes that you can sometimes encounter with wood Plyo Boxes. Two Versions Available Version 1: 30 x 24 x 20”. Weight 15.5 lbs. Support up to 350 lbs Version 2: 30 x 24 x 20”. Weight 64 lbs. Support up to 440 lbs Version 3: 12 x 14 x 16". Weight 15.5 lbs. Support up to 450 lbs Version 4: 16 x 18 x 20”. Weight 26.5 lbs. Support up to 450 lbs Important: Should not be used on any smooth flooring (wood, smooth title, etc). Recommended to use on mat. Consult a physician prior to commencing an exercise program and have a professional trainer to guide you the right steps (especially with the enhanced difficulty level – 30” height setting).Warranty: 1-year warranty and 30-day return .