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 model- Bubbles make each one unique- Round perineum tab design- Kundalini ''K-Tab'' provides additional sensations- Has size, but is very mobile- For advanced and experienced usersPRODUCT SPECS:Tip Width: 3.175 cm (1.25 inches)Mid-Ridge Width: 3.3 cm (1.30 inches)Stem to Perineum Distance: 3.86 cm (1.52 inches)Insertable Length: 11.43 cm (4.5 inches)