After Sale: If you are unsatisfied with any items, just contact us, we'll give you a satisfied solution. Perfect Gift: an exquisite gift for best friends, families, gemstone collector, house warming gift on Christmas, Mother's Day, Thanksgiving Day, Valentine's Day, birthday, anniversary. Black Onyx Bracelet: Lobster clasp has a spring mechanism for sturdy security. Black onyx beads, Polished sterling silver chain. Benefits of Obsidian: Black Obsidian Gemstones is a powerful protection stone, associated with the submarine wheel in the 7 chakras, it can effectively eliminate the negative energy of the body, release mental stress, enhance the new energy, promote emotional well-being and quickly restore physical strength. Can enhance Self control, decision making, intuition, protection. Obsidian Pendant Necklace: The obsidian bead is natural volcanic glass mineral. The stone here is large and black with two faint rainbows that can be seen upon the correct angle of strong light. The brighter the light, the brighter the eyes. When in weak light or indoor, it looks black. When in the sunlight or strong light, it shows its beautiful eyes.