Popular Aqua Kiwi Stone (trade name) which is also called Kiwi Quartz, a harder, better polishing stone than the original serpentine material. This is a color enhanced but dye fast natural stone. The variations of the material cause the color treatment to be absorbed more in different parts of the stone producing attractive shades. Now get this desirable material in the popular Tanker Style bracelet. Double strung on stretch cord. 7 inch length un-stretched.