TSA Lock - The Most Trusted TSA Approved Lock For Travel Safety and Security - Lock Alert, Heavy Duty, Black - Lock Safe(TM) Protection To Ensure TSA Relock After Inspection Sturdy and durable lock: high quality zinc alloy construction to last for many trips, and experience the longer lifespan of lock with the best locking mechanisms that you've ever used. the extra durable lock that is not easily cracked gives you perfect security and protection, so you always have peace of mind on your trips. Lock safe(tm) protection: tsa agents never leave your bags unlocked after inspections, because they cannot remove the key without relocking it. so you can keep belongings safe after tsa inspection! Very easy to use: hassle-free set your own combination, so you don't have to struggle with opening the lock, setting and changing the combination