These carts are specially designed with a 3” (76 mm) deep shelf to contain product and spills. The easy-to-position center shelf option adjusts at 1” (25 mm) increments. Polymer shelves are easy to clean and corrosion proof. All carts are 41” in height and come with four 4” resistant rubber casters. The cart is rated at 150 lb capacity per shelf and a 400 lb capacity per unit.