Use this handy tool cart side tray to keep tools and supplies ready to use. This tool cart shelf folds down easily when not in use. Constructed from heavy duty sheet steel, this roller tool cart shelf holds up to 35 lb. Sturdy designed for U.S General Pro 5 drawer tool cart, adding more than 300 sq inch to the work space. Corrosion resistant, powder coat finish color red, Easy installation and easy to operate, works with lid open or closed. Width 16 7/8 , Length 18 ¼ Inch