Heavy duty plastic construction resists rust, dents, and chips while being virtually maintenance free. Ideal for all types of material handling applications in factories, hospitals, institutions, offices, and workshops. 3" deep shelves to keep items retained during transit. Rounded corners for safety. Sturdy and stable, yet lightweight for easy maneuverability. Push handle with molded-in storage tray to store small parts. 550-lb load capacity. 4 casters included (2 swivel, 2 rigid). Cart measures 40” x 17” x 33”. Inside dimensions measure 15-3/4" x 30" x 2-3/4".