JDZ Amulets Black Obsidian 10mm Beaded Elastic Stretch Stone Bracelet Buddha Mala Energy Bracelet Material:Black Obsidian Beads size: 10mm(0.4inch).It has 18pcs beads. Inside Diameter Approx2.0inch 100% Money Back Guarantee;If you are not completely satisfied with our jewelry, JDZ Amulets is a registered brand and sold by JDZ Amulets only. Make sure the seller is JDZ Amulets to avoid buying fake items ships from USA You will receive a similar picture of product,Because all stones are both natural and unique,