Increase the staying power of your erection and turn your shaft into a stimulating vibrator with this special sex toy. If she loves sex, she'll love it even more with the Xtreme Xtasy Blue Dolphin! This vibrating cock ring has pleasure nubs and a vibrating dolphin for her labia and clitoris, and a stretchy shaft ring, testicle ring combo to hug your erection and give your more staying power. Both the ring and the removable multiple speed bullet are waterproof for incredible sensations underwater or in the shower. Two sets of batteries are included to keep the fun lasting as long as you do! Vibrating Cock Ring is made using phthalate free, non-toxic materials Thermoplastic Elastomers TPE ring, ABS plastic bullet vibrator. Ring unstretched diameter: 1 inch, stretched diameter: 2 inches. Vibrating cock ring requires 4 watch size batteries to power up, 8 included. Special features: waterproof, multiple speed, testicle loop, removable vibrating bullet included. Weighs 4 ounces inside package.