Doc Manley Novelties Optimale Men's Sexual Overall health line. This effective Vibrating C-ring is perfect for pleasuring you and your spouse: having a textured yet soft stretchable silicone ring for simple use along with a removable bullet inside a nubby sleeve for comfortable stimulation. The push button offer 10 unique functions. Put on the ring atop the shaft for targeted clit stimulation or underneath the shaft for targeted clit stimulation or underneath the shaft or testicles for self-stimulation. Batteries incorporated. Dimensions Inner Diameter: 1.5 inches, inner Circumference: 4.71 inches. Total length 2.70 inches. Functional Length 2 ". Width/Diameter 2 ". Circumference 6.30 inches. Color Slate