Coco licious Silicone Kegel Trainer Black Balls. Now this is my kind of workout! Versatile Kegel training system with easy retrieval cord. 3 interchangeable weighted Kegel balls. Smooth and seamless premium Silicone. Safe and pure for body and pleasure made using phthalate free materials Silicone holder, balls, ABS plastic decor. Recommended for women after childbirth and during menopause. 1 inch diameter, small balls: 20g and 30g e or approximately .70 and 1.05 ounces. 1.25 inches diameter, large ball: 40g e or approximately 1.41 ounces.