I do a lot of traveling, domestic as well as international. For some reason, all of my luggage tags on my 31" piece of luggage have been removed by the time I get to my destination. Just for the heck of it, I put three tags on the suitcase and sent that piece "priority." The latter means, your luggage is supposed to be handled gently and is one of the first pieces of luggage to come off of the plane. All three tags were gone! Then, I found these babies!! So far, so good! Perhaps it's because the strap secures to the luggage in a more secure way. Or, perhaps the tag has large invisible extra sharp teeth. Anything or anyone attempting to remove this tag, also known as, "Jaws, Jr.," does his thing.