The Master Lock 4683Q TSA-Accepted Luggage Locks feature a 7/8 in. (22 mm) wide solid metal body for durability. The 3/32 in. (2 mm) diameter shackle is 7/16 in. (11 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! The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.