This Super Stud is a very realistic vibrating penis that is made from super realistic PureSkin a TPR rubber material that looks and feels just like real skin. It is phthalate free and body safe. It has a powerful motor with multi-speed vibration that can even be used in the shower or bath tub because it is completely waterproof. There is a powerful suction cup base that will let you mount this stud to any smooth flat surface, even the shower wall, for some hands free humping. Vibration requires two AA batteries that are sold separately.