Patented interlocking rail & drawer system prevents drawers from shifting off cart. Molded stops on the drawers prevent them from pushing through the back of the cart. Drawers can hold up to 3-pound each. Single carts have four casters (two locking) and double-wide carts have six casters (two locking). This package contains one 37-1/2 by 15-1/2 by 13-inch cart with 2-1/2 by 9-3/8 by 13-3/8-inch drawers. Imported.