Titan Fitness Adjustable 5 Medicine Ball Steel Storage Tree Strength Training Compatibility: Holds most medicine balls, Adjusting width will keep gel balls from slip through; also holds some other larger sports balls Capacity: Each storage shelf is larger than the one above so holds an assortment of sizes, not all small or all large Durability: Sturdy steel frame is rust proof and maintenance free Design: Holds 5 balls, one-sided storage, quality design, easy assembly Includes: Medicine ball tree, no balls included