1> TSA APPROVED: Allows TSA screeners to inspect and relock baggage without damaging the lock, for added security. 2> DEPENDABLE & DURABLE: It made of special zinc alloy,hardened steel shackles and patented internal mechanisms. You can use them anywhere and anytime. 3> SIMPLE TO SET & RESET: Factory original number: 0-0-0-0. You can set any number passwords you want according to the detailed instruction you receive. 4> WIDE RANGE OF USES: The sturdy locks we sell can be used international on a wide variety of items besides luggage or suitcases. These high quality padlocks can be used on a backpack zipper, baggage, gym locker, drawer, purse, gun case, briefcase, cabinet, toolbox golf bag, laptop bag etc. 5> LUGGAGE LOCK: You will receive 1 pack TSA approved luggage lock. Specifications: Lock size (Approximate): 102*33*13.5mm Lock weight (lock only): 62.5g Material: Zinc Alloy Package Includes 1x TSA luggage lock How to Set: 1.The original number is 0-0-0. Setting your own combination. 2.Pull up the shackle to open the lock. 3.Rotate the shackle 90 degree counter clockwise and press shackle into the hole. Hold down and continue to turn another 90 degree counter clockwise. Set your own combination by turning dials.