Robust, simple to use and keeps the seal very well. Excellent value.
Odd, somewhat effective, look crazy on!.
I was expecting these to be a lot smaller, and was surprised to see how large they were in person. I wasn't totally sure how to use them, but it seems adding some lubricant or wetness to the rim of the base, helps them stay on. To be honest, they looked like cow udder milking suckers - kinda strange looking haha! I wished I had bought more of a clamp toy because these would pop off unexpectantly and don't use them much at all since getting them (and kinda forgot about them). Once they get going, they create a lot of sensation, if you're into almost painful sensations.
These were a bit bigger than I expected, however they worked an absolute treat! Being able to adjust the suction therefore change the level of intensity up and down made play last longer with these and a lot more fun especially if you like to let your brat out when using them. The best part is that when your done using these you are left with some fantastic sensitivity and you also can experiment with what's your sweet spot with this.
I found it was good to start low and build up the suction along with test out how sensitive you get in stages.