Maximize gym floor space with the Champion Sports Compact Lockable Ball Locker. Made of powder-coated 1" heavy-duty steel tubing, this vertical locker features rugged rear wheels that roll smoothly over tough surfaces, and front non-marring casters that are safe for transporting balls even over the most delicate of gym floor finishes. Material(s): Steel; Overall Material Type: Metal; Color(s): Black; Color Family: Black.