Load up your Crossbones vibrating cock rings with the finest 7-function bullets in the biz! Double your pleasure with any of the Crossbones designs by adding a second bullet that intensifies pleasure for both you and your partner! - For use with our patent pending cross bullet system. Great as a standalone vibe. - Includes 3 LR44 Batteries - Phthalate and latex free - Made from TPR & ABS - Lube friendly