Material: 8mm Yellow Jade; Heat Treating;Enhance Color with Gift Box; Length: About 7.5 inch Long (19cm) The BRCbeads Advantage: Join the 1 million+ customers powered by our beading and fashion jewelry style, Share our 20 plus years experience in the Jewelry business Notice: All natural gemstones are unique and maybe vary from the one shown in the picture. Elastic from 7.5 Inch Long, Fits All Sizes, Choose Your Birthstone, Lucky Stones, Unisex, Good Matching for Men and Women