This Quantum Industrial Plastic Cart is an ultra-tough, no-maintenance cart built to withstand heavy-use industrial and commercial applications. Wheel Type Two swivel and two rigid casters, Material Type Industrial plastic, Wheel Size in. 5 x 1 1/4, Shelves qty. 3, Dimensions W x D x H in. 18 x 35 x 33, Total Capacity lbs. 550, Top Shelf Height in. 33.