Ribbed for his pleasure the Stainless Steel Prostate Massager includes ridges that increase in size towards the center of the device, giving added stimulation during anal play for a more full and fulfilling sensation. The outer handle massages and stimulates the perineum for dual sensation and the device can also be used hands-free, giving the user an opportunity to pleasure themselves or their partners in many ways! PROSTATE MASSAGER Measurements: 5 inches in total length, 4.65 inches insertable, 1 inch in diameter at widest point