Lewis N. Clark TSA 3-dial Combo Lock/2 pack (Black) Each lock features the Travel Sentry logo, which alerts TSA personnel that they may open this lock without destroying it Each TSA screening location has a secured set of passkeys with special codes to open locks, and will relock them after inspection The Travel Sentry logo on the locks help the TSA to efficiently screen bags and prevent damage to checked baggage Resettable combination The lock can be opened at checked baggage screening stations operated by TSA at more than 400 commercial airports across the country