I purchased this luggage strap with built in TSA locks to make sure my luggage stays together if the zipper fails or to keep out casual thieves.  However, the lock is bulkier than some of the competition, and the plastic pieces fit together in a rather awkward fashion...not a very quick release---too hard to describe here.  If I had looked a little longer I would have discovered a competitor has a trimmer lock with an easier fastening system.  But for what it does it is okay for now.  The combination to the lock was easy to reset to my own combo but be advised that if you travel outside the US, not too many other countries have the key for TSA locks so you are liable to get your strap/lock cut off if they decide to search your checked luggage and you are not present.