I don't put them on my small carry on bag but i do have one on my 20 inch rollaboard. You can't see it when the smaller bag is over the handle when I do take it onboard to spare those who get traumatized at the sight of them. But it does help spotting it at the baggage carousel as just last trip it saved me an argument with a passenger who grabbed my bag and got all defensive when I gently pointed out her mistake until she saw the baggage tag. You want to talk garish then look at FT tags. I bought one 20 years ago but only used it the one time