Mae B Lovely Vibes Elegant Soft Touch Love Balls use your body's own motion to produce pleasure. The more you move while wearing them, the more the balls will shift about inside their round casings, causing vibrations. With no batteries required, Mae B Textured Soft Touch Love Balls are silent, discreet and body-safe. Research shows that a strong pelvic floor and kegel muscles help produce better orgasms over time and aid in other health benefits as well. When used regularly, this toy may help strengthen these muscles.