The Vibratone pink soft-spike soft love orgasm balls have internal steel balls, are self agitating for non-stop erotic movement. This ben wa balls can be used for a good kegel workout. These kegel balls contains small steel balls which move everytime you move. giving a deep massaging sensation that can be used as foreplay, during anal sex or when you are walking around. This little sex toy is also good to tone up your pelvic floor for a tighter vagina to enjoy better sex.