When my order arrived, this was the least expensive item, but it has become my favorite! A previous review indicated a problem with retention...(maybe he's not using this enough)one of my nipples was very "shy" and now it's just as lovely as the other and I have no problem keeping the rings on - only the first few times until the shy one realized how wonderful it is to come out and play! I love wearing the rings for that beautiful look, and they feel so hot - but I will say the little applicator is also a wonderful toy. I have been know to carry it in my purse! An occasional nipple suck even when I'm not wearing the rings is heavenly. It also makes applying other beautiful nipple jewelry much easier. My nipples are much more lovely all the time from the regular "nipple therapy" and they become and stay so much more erect. It's a gentle suction, and the ring sizes allow you to chose one that is not painful. The little sucky thing also feels nice on my clit...but I don't know if I'm supposed to tell you that here!!!!