Doc Manley Novelties Optimale Men's Sexual Overall health line. Full of intense pleasure for you and your partner the Vibrating Double C-Ring has two stretchable silicone rings for the shaft and testicles, assisting you achieve and keep lengthy-lasting erections and prolonged ejaculation. For doubly effective stimulation the twin bullets in textured sleeves target multiple erogenous zones clitoris anus and testicles. The waterproof push-button bullets boast 10 unique functions and therefore are removable for longer play. Dimensions Inner Diameter .8 inch, inner circumference 2.51 inches, diameter 1.5 inches, inner circumference: 4.71 inches. Total length 3.2 ". Functional length 2 ". Width/Diameter 2 ". Circumference 6.30 inches. Color Slate. Updated March 7, 2014