Review on Enhanced Occupational Safety: Compatible Travel Luggage Inspection Indicator by George Kapoor

Good buy. The only problem is that the TSA lock indicator is NOT visible. The description sounds like there's a small red indicator evident that the TSA has picked your lock, giving you the option to open your bags there and make sure all of your contents are captured. In my experience I looked at the locks, they looked fine. I got home and found a TSA business card that said my bag had been checked. I checked the ad again and it looked exactly the same as before. Maybe my lock didn't work properly, but if you don't have a TSA key, unfortunately I don't know how to check it. Luckily the TSA didn't find anything interesting and my luggage was fine.