The Luxor STC221 24 x 18" Three Shelf Heavy-duty Utility Cart is an easy and quiet rolling cart. The cart is made of polyethylene and has a lifetime warranty. It has top flat and middle shelves and a bottom tub shelf; tub is 2 3/4" deep. The clearance is 12" between each shelf. The top shelf is reinforced with a steel bar. The cart is transported by a push handle molded into the top shelf and four 4.0" casters, two with a locking brake.• 300 lb. Weight Capacity