Aneros - Tempo Prostate MassagerYou Supply the Rhythm In the tradition of our acclaimed Peridise massagers, strategically placed knobs utilize the natural rhythms of the inner and outer sphincters. Once inserted, both sphincters spontaneously contract causing this stainless steel beauty to quiver. With a little practice, the Tempo will provide amazingly powerful performances. Use it by yourself or with a partner, both men and women will love exploring with the Tempo. High Quality