Constructed of 0.75mm diamond-patterned aluminum with a full-length stainless steel hinge and foam-filled lid that supports up to 500 lbs., this Tool Box is built to last.It can handle over 250 lbs. of stored equipment and includes a removable sliding tray with rubber isolation mat, dual gas shocks for smooth opening/closing and a one-touch latching mechanism.No drilling is required, it mounts securely to the bed rails.Features the GMC logo.