The Master Lock 4696D TSA Approved Resettable Combination Luggage Lock with Extended Shackle features a 1-5/16 in. (35 mm.) wide metal body for durability. Extended lock shackle is 1-7/8 in. (48 mm.) long and is 1/4 in. (6 mm.) in diameter, offering extended reach for use on equipment cases and is made of steel, offering resistance to cutting and sawing. Transportation Security Administration (TSA) screeners can open, inspect and relock bags and cases locked with a TSA-Accepted lock. Lock your checked baggage with the lock TSA screeners won't cut. Master Lock's Lifetime Guarantee provides peace of mind from a brand you can trust.