CCL Security AB410 Sesamee 3-Dial Resettable Diecast Padlocks

As the title says, these locks are complete garbage. I bought a pair of them to use on a Pelican 1720 case for transporting guns while flying in the US. But I won't trust these things for a single trip. To start, the dials are incredibly hard to move. I really have to dig my fingernail into the grooves between numbers to make each one rotate. I could have dealt with that, but then when changing the combination for one of them (put a "tool" in the lock when its opened and change the combo, then remove tool and it is set to the new combo), and after doing the first lock and the new combo works properly, the second one proceeds to lose the combination and is now not able to be opened. And beyond that, there is no positive lock engagement. You'll close the shackle, it will look locked, and then you can change the combo, but once you tug on the shackle, it opens.

Don't buy these locks, numbers are extremely hard to roll and is really uncomfortable to input code. My thumb is red and throbbing from rolling the numbers to input code