This Quantum Industrial Plastic Cart is an ultra-tough, no-maintenance cart built to withstand heavy-use industrial and commercial applications. Wheel Size in. 5 x 1 1/4, Material Type Industrial plastic, Total Capacity lbs. 550, Dimensions W x D x H in. 18 x 33 x 35, Wheel Type 2 Swivel, 2 Rigid casters, Shelves qty. 2.