The cart is made of fully welded unitized construction with an overall carrying capacity of 500 pounds. The corner legs are made of 16-gauge angle stainless steel. The shelves are constructed of 20-gauge stainless steel with long shelf edges double hemmed for extra strength, and electronically spot welded to the upright legs at all points. Comes with a stainless steel push handle that is welded to the frame, and the corner bumpers are mounted to the front legs and the ends of push handle. The cart has an independent galvanized steel dolly frame that is fastened to the bottom with 8 screws.