PuromaTSA Approved Travel Luggage Locks, 2 Pack Black 4 Digit Resettable Combination Code Lock with Zinc Alloy Body for Suitcase, Backpack, Laptop Bag, Gym Locker, Toolbox

This seems to be a sturdy lock. It is not a flexible luggage lock like the other ones I have; however, it has a 4-number combination instead of three. It took me a while to figure out how to configure the combination since, for some reason, mine does not come with any instructions on how to do it. Usually, there is a knob that you can push and then configure the combination, but this one does not have any. Check other reviews; one reviewer has posted a picture of the instructions. Overall seems to be a good-quality lock.

It was very easy to change the combination on each of these locks by following the included instructions. Each lock seems very sturdy, they are much heavier than all of my other luggage locks. I hour that they don't put too much strain on the zippers.

Too small to fit on luggage, but works for school lockers!

This lock looks quite sturdy and has a solid metal shackle. It was easy to reset the code to my liking. The 4-digit code helps make it a bit more secure than the other TSA locks in the market with 3-digit codes. Other than using on check-in luggage it is also good to keep a couple of these handy to lock the suitcase in the hotel if there is no safe available in the room.

At ~$5 per lock, these are reasonably priced. Was able to set all four to a new combination in less than 5 minutes. I like the window that clearly shows where you want the combination to show up; some models it's not as clear where the numbers should align. Also prefer that this is a four number combination vs three numbers of others.THese locks have a little weight to them. They'll work with loking the zippers on our suitcases but it all depends on what you want to lock, size of holes, etc. Haven't yet had a chance to use them on a flight and, even then, unsure when/if TSA will open the locks to see how that works. I have another TSA lock that has a button that pops if TSA opens the lock so it's easy to tell and I wish these had that feature. Still, this is a solid set.

For the price, these are good quality and well made TSA locks. They are easy to reprogram the code you want and they seem like they will hold up well for regular travel.