Aneros - Progasm Ice Prostate Massager (Black)Unique Beauty With its smooth, shiny finish, the Black Ice could easily be mistaken for Onyx or glass. We consider it the sexiest of the Progasm family, and we surmise that you'll feel sexy when you use it too. The medical grade plastic we use is fast becoming a substitute for glass because of its durability. The production of this material also emits less gases than other types, making the manufacturing process better for the environment. The Progasm