This Ribbed Bullet has the amazing HS III technology that allows you to choose vibration speeds and thrilling motions to create pure ecstasy! The easy to read LED control panel lights up to show you the power and settings. Imagine the throbbing, pulsating and escalating ecstasy with unlimited choices of vibration! Its discreet bullet size makes it perfect for a titillating solo, yet it is powerful enough to bring your lover to a rousing climax. Overall bullet length is 3½" with the largest diameter at 1". The Power Pack requires 4 AA size batteries, not included. Maximum choices of vibrations and thrilling movements thrust you and your partner to sexual bliss never before imagined!