For being a simple piece of plastic these bra strap concealing clips are one of the most useful items I have purchased in awhile. Usually I have to change bras/find a cover for my shirt or whatever the case might be in order to wear a specific shirt, now I can just change how my straps sit on the bra I am already wearing. I don't know why I didn't purchase these sooner. Easy to use and they make a world of difference.