Save the sweat for the bedroom. Exercising your PC muscle with these set of three kegel weights for graduated strength training gives you all of the gain without the pain. Sized to accommodate both beginners & experts. Flex Kegel features: Silicone. Waterproof. Includes Satin Privacy Pouch, 1-Year Warranty. Beginner Dimensions: 35g e or approximately 1.23 ounces1.4 inches. Intermediate Dimensions: 45g e or approximately 1.58 ounces 1.14 inches. Advanced Dimensions: 85g e or approximately 2.99 ounces 1.14 inches. 3 Kegel sets for graduated strength training. Sized to accommodate beginners and experts. Body-safe silicone, Phthalate free. 1 year warranty