High-density foam boxes covered in heavy-gauge vinyl for unsurpassed safety in plyo box training. Mix and match box heights by attaching together with heavily-stitched, 2"W Velcro® strips. Vinyl cover has built-in handles, side grommets for air release on compression, and is completely removable in case of damage. Both sets include 1 each 12"H, 18"H, and 24"H boxes. 5-Box Set also includes 1 each 3"H and 6"H. Specify Color!