We bought two of these, one for my wife, and one for my suitcase for a cruise we recently went on. They survived the trip, and worked great.

Unfortunately, many suitcase designers forget that folks might like to lock their luggage, and for some reason do not use those zipper heads that have the built-in lock clip. Our suitcases are lacking those zipper heads, so we have to run the lock through the zipper handle.

And with our suitcases, we have 3 compartments that need to be locked.  One compartment is locked with a standard luggage lock, as we can put the lock under a strap to protect the zipper handles from damage should they bang up against anything (the suitcases are High Sierra duffels).

However, the other two zippered compartments, when using standard locks, didn't fit the zipper handles well (they looked to be fancy designer zippers), so they resulted in the handles sticking out - which said to me - I am waiting to be broken.

The solution we found was to use one of these locks. We could thread the lock's cable through both sets of zipper handles, and lock them without any of the handles sticking out (the zippers were close enough at one spot on the luggage to do this).

The cable for the lock is about 3.5" long, and the head of the cable is small enough that it will fit through most zipper heads.