4 Swivel Casters (2 Locking) * Capacity - Weight 300-pound * Fits Folder Size(s) Letter or Legal * Material Thickness 16 ga. (post) * Material(s) Steel * Handy bottom shelf for supplies. * Hanging file frame holds letter and legal size folders. * Rolls easily on four swivel casters (two locking). * Sturdy steel wire construction with scratch-resistant powder coat finish. * Tucks neatly under most work surfaces when not in use.