Thomas Sabo Charm Club Obsidian Bracelet .Black obsidian bracelet with a branded charm carrier made from 925 Sterling silver, to which up to three charms can be attached. The bracelet comes with a stretch nylon cord and can be easily slipped over the wrist. They are available in four sizes, from S to XL. Width: 1.0 cm. Bracelets & BanglesSterling SilverBirthdayGlassSpring/SummerFASHIONBirthday Shop At House Of Fraser