I am really glad I bought these because my bra straps are always falling down unless I am wearing a razor back bra. These will make any bra into a razor back type bra. I did struggle with these at first trying to figure out the best way to get them on my bra and putting my bra on. The best way for me was to put my bra on normally and then reach back with the clip up high on the strap and put one side on the clip and then reach to the other side and put that side on. I do it higher towards my neck and then carefully slide it down where I want it. You have to be careful that your straps down twist as you do it so they lay flat. I got the hang of it after a few tries.  To take them off. I reached back to unclasp my bra first and then removed the clip. I only wished I knew about these sooner. I love not having to mess around with my bra straps falling down all the time.