So I'll start by saying that this is totally a beginner sucker. When I opened the package to show her the suckers, she got excited and wanted to try them. Unfortunately, when we started to use them, we had some issues getting it to pull enough suction to even stay on. Once her nipples were erect, and we played around with it some, we got it to stick. The suction didn't last though and was very light. We had issues with the flared base and ultimately ended up flipping it up so we could get her nipples in the holes. Made for a little bit of odd design, but we worked at it until we got it to do something. Until we can buy something a little more serious, we'll try these out again, but it's not something we'd buy or recommend to anyone looking to use O-Rings to maintain erect nipples or to anyone looking for anything more than light to moderate suction.

Soft silicone feels nice, but the material causes suction to be mild at best and seems to quickly lose suction. Hard plastic or more rubberized materials tend to hold suction better, but as this seems to be for beginners, it's enough to get the job started.

The wide base made it weird to pull a suction. We had to flip the flange up and place the nipple directly in the hole. Once there was suction, we tried leaving the flange flipped up and also flipped it back down. I guess if you have really pointy breasts or areolas, it might be okay, but it just was a weird design for us. We'll certainly try again, but I think it's just not a good fit for what I'd call the "average" breast.

Cleaning these things are SUPER DUPER easy. Some soapy water on the end of your finger, jam it in the hole, scrub around, and rinse. I typically pour a little alcohol in and let them set for a while to dry, but it's one of our easiest cleaning toys.

It got her nipples erect, but she likes a little more suction than these can provide and the ability to slip rubber bands (o-rings) over her nipples to keep them erect.