Glass Pleasure Balls by Adam & Eve are inlaid with elegant flowers. They're hand-blown glass balls that are perfect for Kegel-type exercises. These glass balls can be used to tighten the vagina and strengthen the bladder. The knowledge of the ancient far-east meets modern technology to produce these glass ben wa balls. Centuries ago women used pleasure balls to stimulate orgasms, and in modern times Dr. Arnold Kegel taught women how to tighten their vaginal muscels with kegel exercises. These two great concepts were impetus for these elegant hand-blown glass balls. Now you can enhance your intimacy and pleasure! More Ben Wa Ball sex toys.