The Alex and Ani® Obsidian Pendulum Necklace is a beautifully long necklace with delicate details. Obsidian symbolizes power and safety. Wear this grounding stone to summon spiritual growth, block negative energy, and heal old wounds. Adjustable design allows for a customized fit. Sterling Silver finish. Slip on design. Made in the U.S.A. Measurements: Chain Circumference: 42 in Pendant Height: 1 7⁄10 in Pendant Width: 1⁄2 in Weight: 0.4 oz