This lock is TSA approved, if transport security officers want to access your bag then they can use their special key to open the lock and they'll relock it when finished. The keyless combination lock is easy to use and set. 3 Digits offer multiple combinations for your maximum safety. It can be used international on a wide variety of items besides luggage or suitcases. They can be used when travelling on your suitcase or backpack, or they can be used at home, in school, in the gym or on your backpack zipper, baggage, gym locker, briefcase, cabinet, toolbox golf bag or laptop bag.