WHAT'S A YONI EGG? A Yoni Egg is an egg-shaped stone used as a weight resistance for vaginal strengthening, toning and healing. Used traditionally in ancient China over 5000 years ago, yoni eggs have gained popularity in recent years as a form of Kegel weight training to help women and vagina-owners connect with their pelvic floor muscles and enhance natural lubrication and libido. ADD THE 7 DAY YONI EGG IMMERSION ONLINE COURSE FOR $97 When inserted deep inside the vagina for approximately 30 minutes a day, women can notice a dramatic improvement in their pelvic floor health, bladder control and overall internal sensation and orgasmic potential.