"This Quantum Industrial Plastic Cart is an ultra-tough, no-maintenance cart built to withstand heavy-use industrial and commercial applications. Shelves qty. 2, Total Capacity lbs. 550, Material Type Industrial plastic, Wheel Size in. 5 x 1 1/4, Wheel Type Two swivel and two rigid casters, Dimensions W x D x H in. 26 x 40 x 32 1/2."