Nipple Suckers

I find that they do seal pretty well and definitely have powerful suction if you really go for it. My partner made a horny "ooo" sound watching the nipple get sucked up, so all parties involved are fans :) plus, applying a vibrator to them added a whole new dimension.

I've found that if the suction is only low/medium, the weight of the turn-screw can make them unseal and fall off my nipples as the mechanism is relatively large and the weight drags it down/sideways a bit (but if I turn the suction up the sensation increases, obviously, so I'm sticking with them falling as opposed to turning the suction up higher - ouch!). Still, I've used them a few times and they seem like they will hold up to a lot of use. They were larger than I expected because I ordered online - but I didn't reduce my review stars on that basis.

Unfortunately after receiving this product, one of the plastic knobs broke immediately after being removed from the packaging. The other seems to work okay, so perhaps just bad luck on my part for receiving one with a weak bond.