Rubbermaid Commercial Xtra Instrument Cart, 300-lb Cap., 3 Shelves, 20w x 40 5/8d x 37 4/5h, Gray For use in hospitals, health care centers, labs and hotels/motels. Transports instruments and supplies. Three smooth, easy-to-clean shelves, sliding top drawer and two molded handles. Enclosed bottom shelf with locking doors secures contents. Easy to assemble. Color: Gray; Capacity (Weight): 300 lbs.; Caster/Glide/Wheel: Four 4 TPR Swivel Casters; Material: Structural Foam/Brushed Aluminum.