About this item BUILT TO LAST: Yes4All Adjustable Soft Plyo Box is made of EPE foam that offers increased stability and holds up to 440lbs for maximized safety. The heavy duty vinyl coating keeps it from wear and tear even with explosive plyometric workout sessions HIGH ADJUSTABILITY: Available in 4 height options, our jump boxes are fully stackable and can be used with each other for increased box height; simply put one on top of another and link them up securely with the attached Velcro straps SAFE, PRACTICAL DESIGN: PVC covering increases your feet grip and prevents slipping from sweats, while pro-duty foam construction absorbs pressure and reduces injury risk to a minimum. The covering can also be easily taken off for cleaning, washing HIGH WEIGHT CAPACITY: Due to its strong, quality construction, our plyometric box is capable of holding up to 440lbs and absorbing heavy pressure, offering maximum support and safety during intense workout sessions ULTIMATE TRAINING EQUIPMENT: Help drastically improve your performance with HIIT workouts and a huge selection of plyometric exercises such as box jumps, step-ups and box dips vertical jump training box exercise equipment foam plyo plyometric jumps boxes soft adjustable squat inch work out cube workout step vaulting vertec tester padded platforms wood for titan jfit higher jumping set 24 pylometric 12 hipstriker pliometric