Polar Jade Nephrite Jade Egg， Medium， Drilled with Unwaxed String， Cleaning Brush and Instructions for All Levels of Users in Kegel Exercises to Gain Better...<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Everything included: You get: One nephrite jade egg， one box of unwaxed &amp; unflavored dental floss as retrieval cord </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Most popular size: Medium size (1.7 x 1.2 inch) (43 mm x 30 mm)， sideway (horizontally) drilled at the smaller end of the egg </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Certified: Made and certified by Polar Jade， to ensure the egg is made of 100% genuine and natural nephrite jade and workmanship </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Luxury and most healing: Stone: Nephrite jade is considered "stone of heaven" and "royal gem" in china </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Can last a life time: Nephrite jade is very solid， hard and dense and can last a life time </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51kzjklIkBL.jpg" noproxy>