LUXURY & ONE-OF-A KIND: This pair of kegel balls (kegel exercisers) is made of 100% natural and genuine obsidian gemstone, excellent gift for yourself or your loved one for training pelvic floor muscles to gain better bladder control.</br>SAFE & HEALING: Hand crafted with outstanding finishing, without any chemical treatment or dyeing. Most Ben Wa balls on the market are made of metal, plastics (silicon) or glass. Obsidian is a protective stone that shields against negativity, and absorbs harmful energies from the environment.</br>GOOD FOR BEGINNERS: Medium size (25mm) (1.0 inch), 20 grams (0.7 oz) for each ball, and 40 grams (1.4 oz) combined weight. With drilled hole for removal string for easy removal. Medium size is good for most users. If you think you have weak pelvic floor muscles, you may want to search "genuine jade Ben Wa balls Large" for our large size.</br>EVERYTHING INCLUDED: Comes with one box 55 yards of unwaxed & unflavored dental floss for use as removal string or string in vaginal weight-lifting.</br>HANDY & BEAUTIFUL POUCH: Comes with a.beautiful purple velvet jewelry pouch for storing the balls and the string. The pouch can also be uses as the weighting bag in vaginal weight-lifting..</br></br>Product Description</br></br><b>No more metal or plastics</b><br> Most kegel balls on the market are made of metal, plastics (silicone) or glass. <br> <br>Don't wear metal or plastics balls, wear genuine obsidian gemstone kegel balls (kegel exercisers).<br><br> This rare, safe and healing pair of kegel balls is made of 100% natural and genuine obsidian gemstone. Comes with one box 55 yards of unwaxed & unflavored dental floss as removal string and a beautiful purple velvet jewelry pouch. <br>Medium size 1.0 inch (25mm) diameter, about 20 grams (0.7 oz) for each ball, and 40 grams (1.4 oz) combined weight.<br><br> <b>Why obsidian gemstone?</b><br> Obsidian is a protective stone that shields against negativity, and absorbs harmful energies from the environment. This stone is believed to reduce the pain of arthritis, help joint problems, ease cramp, and aid digestion. This stone can also help in proper blood circulation. <br><br> <b>Safe, easy to clean, and crystal healing:</b><br> 1) Safe: obsidian is a natural crystal. The balls are hand crafted without any chemical treatment, not even waxing. 100% natural and genuine.<br> 2) Easy to clean: kegel balls with string on the market are difficult to clean because of the porous string used, which is always a safety and hygiene concern. This set of kegel balls comes with one box of unwaxed & unflavored dental floss for use as the disposable removal string. When you do not need the removal string after your love muscles are trained stronger, you can wear the balls without the string. <b>Safe, easy to clean and easy to remove.</b><br> 3) Healing: Obsidian is excellent to assist you to release disharmony, resentment, fear and anger that have built up in daily life and work. <br><br> <b>What are kegel balls?</b><br> Kegel balls (Ben Wah balls) are small balls used for kegels to increase the strength of the pelvic floor muscles to counter stress urinary incontinence, gain better bladder control, and improve or prevent back pains and uterine prolapse.</br><br/>http://www.amazon.com/gp/product/B01EXESIAW