This prostate massage vibration toy adopts an ergonomic design. The two rings securely tie your penis and testicles, making you harder and longer. It can stimulate your perineum, anal and prostate at the same time. Let you reach an unprecedented orgasm. 100% waterproof, enjoy playing it in the water. A variety of ways to play it, not only allow you to experience the happiness of solo, but also provide you and your partner with more exciting experiences.