I will start saying that in the very end you are only buying a travel case lock! it is not a safe lock or a container lock it is what it is.
Now being sad that, if you compare this locks with the rest like samsonite etc, I can assure you this might be the best constructed, all is built in steel and you can feel it by its weight, I have bought at least 5 pairs of them, and use them around the globe no one has failed yet (more than 5 years of use). I even use them for my rifle cases when traveling, I'm sure if some one wants to steal from you they will find easier to cut your luggage than braking the lock. Highly recommended.