I bought one of these. It's a scale,strap and TSA lock built into one. I have a TSA key and this lock has an alert window. When the TSA opens it the green window turns red. It turned red when I opened it but I couldn't get it to set back to green. It took several tries but I got it apart and figured out how it worked. Reset it back to green and put it back together again. Of course I had to try it again. Still won't reset on it's own. Now I can take it apart and reset it in about 3 minutes. It would have bothered the shit out of me if it stayed red almost to the point of buying another one. The built in scale is pretty cool too. I had to order the batts as I didn't have the exact size. It's a Samsonite. I couldn't find it on their website any more. Ebags has it for $33. I found it on Ebay for $14. #maga