This REALROCK CRYSTAL CLEAR model is designed with realistic balls for an enhanced, lifelike experience. All feature a sturdy suction cup so you can secure them to almost any flat surface. All REALROCK CRYSTAL CLEARs are phthalate-free, latex-free, body-safe and non-porous, making them easy to clean and longer lasting. This model with balls is 21 cm (8.3) long, including the suction cup, has a penetrable length of 16 cm (6.3) and a girth of 4 cm (1.6).