The head/glans is the most sensitive part of the male erogenous zone. Less known is the sensitivity of the perineum, the area between the scrotum and the rectum. Stimulation of this place almost immediately triggers an erection and can even lead to an orgasm, and that's exactly what Dr Joel's anal and perineum stimulator does! Place the loop around your wrist and let the perineum massager do the work. Also perfect for mind-blowing foreplay. Required batteries: 2 x AAA.