The Master Lock Steel 1-3/16in (30mm) TSA-Approved Lock, 1-1/2in (38mm) Shackle helps you keep your belongings safe and reduces hassles when you fly. The steel alloy metal body and flexible braided steel shackle can take all the rough treatment that can happen between check-in and your destination, while allowing TSA employees to unlock and lock your belongings to inspect your luggage without cutting the lock. This makes it possible to protect checked bags against theft, knowing the TSA may need to open it. Even if your luggage is lost or delayed, a solid travel lock protects against theft, letting you focus on all the other tasks that need your attention. Use this travel lock on luggage, as well as backpacks and other portable items. Set your own combination for easy memorization. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.