One master key each for TSA locks: TSA002 and TSA007. If you only need one, it's listed separately as a single item. Please check your lock or key to see if it's marked TSA 002 or TSA 007. Can also be used to unlock locks if you've forgotten the number. Generally usable for all TSA002 locks, but please note that it may not unlock locks if the lock or keyhole is damaged. Please note that it may not work with TSA002 locks on Arnold Palmer suitcases from about 15 years ago.