Bump N Grind is just what a girl needs for a special night. It`s texture helps intensify the vibrations produced by the powerful and quiet motor. Twist the dial on the bottom to control the speed of the vibrations. It`s also waterproof so you can take it in the shower with you!Size Length: 6.25 Insertable Length: 5.5 Width: 1 Circumference: 3.75