The Eagle Creek Signal Search TSA Lock is a combination lock that will allow you to secure your luggage, but still let the TSA do their search without having to cut the lock off. Transportation Security Administration (TSA) baggage screeners have a secured set of codes and tools to open Travel Sentry Certified locks, like the Eagle Creek Signal Search TSA Lock, when necessary for inspection without damaging the lock. A red and green indicator function on the Eagle Creek Signal Search TSA Lock allows you to know if the bag has been opened by security personnel.
I bought two of these locks to use on my recent trip to Australia. Counting the flights to that country and within it, I traveled by air 8 times, and also by bus more times than I can count, along with my luggage. The locks performed perfectly. The dials were easy to read and to program with my own 3-number combination. When I returned home, I discovered that one of the locks had been opened and re-locked by TSA, thanks to the handy red indicator on the lock. The indicator and combination reset without difficulty. I highly recommend these luggage locks.
Worked well. Would not be hard to overpower, but anything that helps security w/ the TSA mess is a good product.