Hands Free Vibrating Pleasure Ring is an ultra-stretchy, super-soft, vibrating pleasure ring fits comfortably on the penis providing erection support while stimulating both you and your partner. Wireless micro stimulator. Vibrating ring is made using phthalate free, non-toxic materials: SoftTouch Thermoplastic Rubber TPR ring, ABS plastic with silver plating stimulator. Batteries required to power up 3 watch size, 6 included. Ring measures 3.75 inches long by 1.5 inches wide. Stimulator measures 1.5 inches long by .6 inch wide.