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 you'll love. It's 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 licking sensation you`re in love.