Lie on your back with the small end inserted and hold the large end with vibrator in place. Rock it back and forth by moving your hand up and down and you'll feel the massager working its magic, caressing your g-spot. Made of hypoallergenic, durable medical grade silicone which is easy to keep clean. The larger end houses the powerful one-speed bullet vibrator which is included in the package. Waterproof design makes it perfect for the shower, bath or hot tub. Requires 3 watch batteries which are included.