Very powerful suction. It took me a while to figure out which pump and ring set worked best for me. I like how powerful the suction is on my nipples, and then how tight the rings fit to keep them erect. This definitely works for women who already have large nipples. This is a great toy to use in conjunction with Naughty Knockers.

I used them solo to enlarge my nipples...loved the damn things...only thing is the rubber bands get lost easy...they need to add more...

My husband was very surprised when he opened the package from Adam & Eve and saw this toy. He loves to play with my nipples but I usually try to keep him away. It was the very first item he wanted to put to use in the package! I am not sure who the small rings could possibly fit but the large rings are great! They really stay in place keep my nipples standing up for a long time.

good to use on the clit as well

I've never used one of these products before and thought I'd give it a try, especially since it's pretty cheap. It definitely works. It made my nipples nice and plump and initially it felt pretty good but OMG my nipples really started to hurt once I had the O-rings on for a couple of minutes and I needed to take them off!