Australian Opal Bead Bracelet Adjustable Australian Opal Bracelets Unforgettable Limited Edition Design Opal Beaded Layered Bracelet Opal Bracelet Etsy Yellow Opal Bead Bracelet 8mm. Material: Opal, Agate, Crystal Care instructions: 1. Use a soft cloth to wipe. After each wear, you can use a soft cloth to wipe. 2. Avoid contact with water, as prolonged exposure to moisture can cause discoloration. 3. Store properly. If not wearing the jewelry for a long time, it is recommended to store it properly to avoid prolonged exposure to air, which can cause oxidation. Imported Product measurements: 19. 7 in