Ben Wa

Ben Wa balls, also known as orgasm balls, jade balls, Venus balls, or mien-ling, are marble-sized balls, usually hollow and containing a small weight, that may be inserted into a vagina and held in place by the pubococcygeus muscles. They may be used as a sex toy by creating sexual stimulation or pleasure by rolling around in the vagina stimulating movement and/or vibration. They create a subtle stimulation that does not bring the user to immediate orgasm but rather teases.