The super stretchy Silicone Cock Ring is a perfect addition to an evening of love making, turning the penis into a fully vibrating shaft of power. The one touch vibration unit uses replaceable batteries and gives off a powerful continuous vibration that lasts for up to 45 minutes. Attach to the base of the shaft and use either way round to make a ball bouncer or clit tingler. Length of the vibrating bullet is 4.5cm (2 inches). Batteries supplied.