Bought two of these, not particularly to secure my luggage, but to make it more easily identifiable on a baggage reclaim belt. That part of it they did well but I am not 100% confident that they would stay clipped on in the event of heavy handling. The clip part is made of a soft-ish plastic and when I first put it on my cases at home I found that they came unclipped easily. Having said that, they both remained in place on a return trip by air to Rome so they are probably OK. The free internet registration for recovery of lost baggage is a good idea.