Mrs. mswtravels and I have used them, with great success. I do a lot of international travel, and prefer to have my bags locked. When I've arrived at some int'l destinations, the TSA had left me a note saying they were in my suitcase, but the locks were locked. By the way, I tried buying them in Argentina, to no avail.

I'd be interested to know if anyone knows whether these locks are available for sale in countries other than the USA.