So i just received my gemini nipple clamp toy and to be honest, I'm disappointed in how they preform. They aren't really strong in vibration and the design is okay, could be better designed. I was expecting them to be like the hyphy toy, more precision targeted that would really get you really sensitive nipples. All in all its nice but not sure if its worth it, i guess for some it might just be strong enough especially if you don't do a lot of nipple stimulation. For others its on the weaker side.