These high quality, gold plated, polished metal balls, are perfect for strengthening the pelvic floor muscles. Each ball weighs 28 grams and is designed to tone your Kegel muscles while creating sensual internal sensations.These high quality, gold plated, polished metal balls, are perfect for strengthening the pelvic floor muscles. Each ball weighs 28 grams and is designed to tone your Kegel muscles while creating sensual internal sensations. Cloud 9 Novelties Duo Kegel Balls can be used on their own or in their silicone sleeve designed with an easy retrieval loop for your comfort. How to use: 1. find the perfect weight. Start with one ball at a time to determine your comfort level. Insert balls into the vagina one at a time. If using the sleeve, leave the attached loop out of the vagina for easy retrieval when finished. 2. squeeze the pelvic muscles to hold in place. Squeezing repeatedly or simply holding in place while sitting, standing, or working out can strengthen the pelvic floor. 3. to remove, relax your muscles and retrieve. Specifications: premium silicone. .75 inch in diameter. 28 grams per ball. Polished gold plated balls. Completely body safe. Easy retrieval loop. Easy cleaning. Care and cleaning: clean the Kegel balls before and after each use. For best results, use Cloud 9 Novelties Toy Cleaner or antibacterial soap. Ensure Kegels are dry before placing them back in their sleeve. Store Kegels and sleeve in a cool dry place. Cloud 9 Novelties are intended for use strictly as adult toy novelties. They are not intended for medical use and have not been clinically tested. No medical claims are warranted or implied by the use of these products. One year limited warranty.