Handmade Beaded Bracelet. Materials: Natural Black Tourmaline Stone, Black Braided Nylon Cord. Size: Adjustable - fits all sizes. Each stone is hand selected to ensure a high quality piece of jewelry. Black Touramline helps create a shield of protection and to prevent negative energy from entering. It represents purification and the cleansing of the emotional body. The stones may have rough edges that may be uncomfortable to the wearer.