I have mixed emotions on these tags.  We travel a lot and our old tags needed replacing after MANY long distrance trips, and ulitmately a european trip involving planes, trains and automobiles that finally wore them out.  We replaced them with these and went to visit family for the holidays via plane and limo and unexpected snow storm..and some tags held up while others broke off.  One trip and some didn't make it.  I don't know if the snowstorm and 7 hours delay in Denver contributed to the tags failing...so I am on the fence about the quality of theses tags.