Say hello to big power and even bigger results! The Optimum Series™ Get Hard™ Head Pump Set is the premium, completely automatic penis pump that does it all. With 3 levels of suction, 5 vibration functions and a built-in vibration tickler cushion, he’s sure to find explosive results every time. The penis vacuum pump's soft, vibrating contact pad features sensual teasing ticklers to tantalize and entice for all-over stimulation. Two included interchangeable donuts offer a perfect seal and different levels of intensity. Measures 5 1/4”L x 3”dia. ABS plastic/rubber/metallic plating. Requires 3 AAA batteries (not included).