4.8 Quart Modular Stacking Box by Iris &reg; Constructed entirely in the USA with super strong polypropylene plastic. Also stacks on the Extra Large Stacking Box and the Small and Medium boxes can stack and slide on this size box. Reinforced base and corners can handle heavy duty storage needs for an array of items such as parts and hardware in the garage. Offers usable storage space measuring 6 1/2 inches wide x 3 1/2 inches high x 11 1/4 inches deep.