The V ring #7 is a small disposable vibrating cock ring made of pure phthalate-free silicone material. Stylish raised designs like a large clitoral bump and a small knot 'handle' for sliding it on add pleasure and comfort during use. To use, simply squeeze the sides of the top until vibration begins; squeeze again to shut off. The included batteries provide approximately 40 minutes of enjoyable vibration, after which the bullet can be removed and replaced with a favorite mini bullet (not included) if desired. Soft silicone stretches to fit almost any wearer and can be washed with soap and water once the bullet is removed. Use only water-based lubricants with this toy. Color: Charcoal Type: Vibrating Silicone Cock Ring Material: Silicone, Plastic Diameter (unstretched): 1 1/2" Diameter (stretched): 2 1/4" Batteries: Included, Disposable Length: 3" Width: 1 3/4" Weight: 2 oz (in package)