1. Heavy-duty zinc alloy body, and hardened steel shackle plus a patented internal mechanism, all make the Aspen TSA padlock the strongest and most durable padlock on the market,We are committed to offering the customer a warranty one year. If you have any problem with your purchase, please let us know. We will resolve it as soon as possible by all means.2. FORCED SECURITY BY 4 COMBINATIONS AND NO WORRY TO INITIALIZE YOUR CODE. There are 10,000 combinations, that's ten times more security than most locks (3 combinations) on the marketwith our detailed instructions and photos you can easily reset your lock in 30 seconds. 3. the main advantage is our PROFITABLE PACK. you will receive a cable that will surprise you with its flexibility in addition to the two locks. This cable can be threaded from side to side, perfect for securing bags to a fixed object, securing them together or attaching wire pullers.4. ALWAYS PROTECTED, ALWAYS SECURE. Most TSA locks on the market do not need to be relocked by a TSA agent after their inspection is complete. With our TSA luggage lock, the agent must close your suitcase to remove the key.5. MULTIPLE USES: Our small TSA locks can be used on a variety of items. They can be used on suitcase, sports locker, backpack