The art of glass meets the science of pleasure. Doc Johnson presents the worlds first premium vibrating glass. Designed by true artisans in vibrant jewel-like pallets, they're waterproof, phthalate-free, completely hygienic and easy to clean. And because they're glass, they transfer an incredible vibration, at any of their three varying speeds. Warm them up or cool them down with hot or cold water to experience an additional boost of euphoria. Consider them a reflection of our attention to detail, design and technology. 5 inches long and require 1 AA battery, (not included).
I was at the store with my boyfriend and found this and I knew I had to have it. I love it. The glass is so smooth and the bumps give a great sensation! it is a little harsh at first, but once the vibration starts you never want it to stop.