SMARTBALLS UNO - HAVE A BALL Kegels for all! We cut the classic SMARTBALLS design in half, making a Kegel weight that beginners, folks with a tilted uterus, and anyone who's had a hysterectomy can use comfortably. Just hold the SMARTBALL inside and go about your business, or do your usual squeeze-and-release Kegel exercises around it for a more intense workout. The weighted ball inside will bump and roll as you move, making your muscles work even harder and bringing stronger orgasms into your life that much faster.