The Rubbermaid Commercial Xtra Instrument and Utility Cart is a rolling utility cart with two shelves, a lockable cabinet and a sliding drawer. Constructed from durable plastic, the wheel cart has sturdy swivel casters for smooth movement, and raised arms on either side for added maneuverability. The sliding drawer provides added space for instruments with easy access. Locking Storage Compartment. Material(s): Brushed Aluminum; Structural Foam; Overall Material Type: Plastic; Color: Gray; Color Family: Gray.