The Champion Sports Half Size Lockable Ball Locker keeps all of your sports balls, or playground balls organized and accessible. This ball locker features an all-steel construction to ensure your items are safe, a yellow powder-coated finish for increased indoor and outdoor durability, and four rubber ball bearing casters that not only protect the finish of your play surface but also allow for convenient transport of equipment. Material(s): Steel; Overall Material Type: Metal; Color(s): Yellow; Color Family: Yellow.