Quantum Storage Systems announces its industrial strength plastic carts, now stocked in Miami, Chicago, and Philadelphia for immediate shipment. These durable, rugged carts are ideal for transporting tools and supplies. They are heavy-duty, with a 550 lb. load capacity, and come standard with 2 swivel and 2 rigid heavy-duty casters for easy control during movement. Choose from 2-shelf and 3-shelf models. Select tray or flat top shelf.