Holds 15 to 21 medicine balls. Store medicine balls of all different sizes. Trays increase in width from top to bottom. Store up to 21 balls with an 8" diameter or 15 balls with an 11" to 12" diameter. Locking casters for easy transport and storage. Steel construction. Assembly required. Black. 58" L x 20-1/2" W x 38" H. 41 lbs. Ships in 3 boxes. Balls sold separately.