When I received these locks it was interesting to learn that TSA could reset the flag with a simple edge tool. I work with the airlines and a TSA buddy showed me how they reset the flag so it does not appear that the TSA searched. The locks are functional and do the job, but anyone with some wire snips could get through them.

An interesting point. You can insert any key into the bottom of the lock and get the flag to raise. The key will not turn unless the correct TSA key is inserted though.