Designed for a woman by a woman. Ergonomically contoured, easy-to-use female pump with superior suction and resonating vibrations. Features 2 interchangeable sleeves (included), Easy squeeze bulb, Easy push button control and quick air release valve. Overall dimensions are 6 in. by 2 in. Suction cup is 2 in. by 1.5 in. Requires 2 AAA batteries.