The Pearl Shine(TM) Vibrator Series consists of glossy rubber outer skin over a foam core. The 9" Blue has a soft sensual feel and silky sensation with a hefty 1.75" diameter. It features a nicely shaped head and realistic veins along the upwardly curved shaft of this multi-speed vibrator. Two AA batteries, not included, provide the vibrating action. It's waterproof for all of your water sport fun!