Every Aneros Progasm Ice is a one of a kind. The production process creates a unique air bubble, making each one unlike any other. The sleek design provides an intense prostate massage backed by our patented hands-free design.Despite its appearance, the Ice is not made of glass. Rather, it is made of an award winning, FDA approved, medical and food grade plastic which is rapidly being used as a replacement for glass because it does not break. The production of this plastic also emits less gases than other types, making the manufacturing process better for the environment.Largest Aneros modelBubbles make each one uniqueRound perineum tab designKundalini K Tab provides additional sensationsHas size, but is very mobileFor advanced and experienced users