Enhance your prostate massage experience with new Ultra Si. This dual prostate and perineum massager combines the firmness of polypropylene with the luxurious cushion of silicone to give dual sensations youll love! Its designed to fit comfortably within the male form with a shaft shaped to massage the prostate internally whilst the stainless steel rollerball gently rolls against the perineum, delivering a delicious licking sensation. Ultra Si, combines the effective shape of Nexus Neo, the firmness of polypropylene and the cushion of luxurious silicone.100mm Insertable length140mm Total Height32mm Widest diameterPolypropylene Core coated with velvet touch silicone.Waterproof, Phthalate Free and Anatomically Contoured