TSA accepted locks display a special logo to prevent your locks from being cut by security This lock has a search alert - a window on the lock will indicate whether or not the lock was opened by the TSA. This Boomerangit lock comes with a life time complimentry lost & found return service with the purchase of this lock. Each Boomerangit lock has a unique ID serial number. Once you register on line you are in the database. Boomerangit works together with law enforcement, lost & found personnel, transportation, hospitality personnel and good samaritans in helping to retrieve lost luggage.