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