1Doctor recommended kegel ball exercises make vaginal muscles strong, train pelvic floor, can achieve health effect 2It has multi-functions, which can improve bladder control, sublimate your sexual relations, and help make childbirth and recovery easier 3Body-safe silicone ball is harmless to your body and easy for removal 4Cord is soft and smooth and has round tip around your G spot 5Different balls for different period vaginal muscles exercise