The Master Lock No. 4680DNKL set your own combination TSA-accepted luggage lock features a 1-3/16 inch (30 mm) wide metal body for durability. The 1/8 inch (3 mm) diameter shackle is 3/4 inch (19 mm) long and made of steel, offering resistance to cutting and sawing. Transportation Security Administration (TSA) screeners can open, inspect and relock bags locked with a TSA-accepted lock. Lock your checked baggage with the lock TSA screeners won?t cut.