Made of natural Black Obsidian, this bracelet is a wonderful way to wear a favorite crystal! The elastic bracelet stretches to fit most wrist sizes. It’s made of smooth tumbled stones (not chips) which are beautiful & comfortable to wear, too. Stone size, count & color will vary in this natural product. About Black Obsidian Black Obsidian is a kind of natural glass, formed by rapidly cooling volcanic lava. Obsidian has been used as a scrying medium for thousands of years, since the time of the Aztecs. Obsidian is reputed to be a strong psychically protective stone, helping to cleanse negativity & dispel falsehood. Because it is an igneous rock, it contains the energies of both Earth & Fire. It may aid in stimulating gifts of spirit contact & prophecy. Black Obsidian Tumbled Gemstone Bracelet | One Size