Enjoy a long-lasting and intense stimulation with the Saturn Vibrating Cock & Ball Ring from the Hueman collection. The ring restricts blood flow, which makes your penis and balls extra sensitive to touch, and your erection will feel harder and last longer. The ring features 10 different vibration settings (3 speeds and 7 patterns). It has a firm core with a soft silicone coating for comfortable use. The ring is completely waterproof, so you can even take it with you in the shower or bath. It is rechargeable with the included USB cable. Clean the ring after use with toy cleaner and lukewarm water. Internal diameter: 47mm/1.9".