Pendant’s Size: (Diameter)1.96 inches x 0.39 inches (thickness); Necklace Length: 50-80cm(Adjustable). Selection of high-end materials, carved texture clear, matte process exquisite.Round Natural Black Obsidian Crystal Pendant Bead Necklace with Attractive pattern design,make you look more elegant. Suit for Mens and Womens. Obsidian is a nice crystal gemstone, anti-radiation, fatigue resistance , and bring positive energy to you , and benefit for health.Obisidian is a lucky stone according to a legend. Superb manual art-craft, strong and durable workmanship,highly hand polished ,wear comfortable. This pendant necklace is a great gift for Birthday, Father’s festival, Mother’s festival, Business gifts,Tourism souvenir ect.