The method of password reset is also very easy: Unlock the TSA lock with code to default (0-0-0), press the button, and pull up the cable. Press in the reset button with a pin. Set your own password（It's recommend to set 001 first to prevent operation error) Press the reset button BACK to nomal, password set successfully! Take photos to prevent forgetting your password. This TSA cable lock is in good quality on the market. We have optimized the design scheme and increased the password 3 digits. Choose 14cm flexible cable to better lock things through small holes. We can lock small luggage such as backpack through the zipper hole. And because of the longer length, you can chain multiple zippers together for higher security. Zinc alloy body on this travel lock is tough enough to survive even the roughest trips. Baggage handling can be hard on your luggage. Why choose us? TSA Approved Locks TSA padlock can be unlocked/ relocked by TSA agent without damaging your padlocks with combination. Flexible Cable - mini combination lock is designed with flexible but extra durable cable, that will easily withstand a pulling tension of 600 lbs. Wide-Range In Application. Due to the flexibility of the cable, the locks can be used for a variety of items, except for luggage or suitcases. They can be used on traveling with your: suitcase or backpack or at home, at school, at the gym or on your backpack zipper, luggage, gym, briefcase, cupboard, tool bag or laptop bag etc.