Arrowhead Magic Amulet Black Agate Crystal Point Lucky Charm Pendant Necklace Best Amulets Collection. Arrowhead Magic Amulet Black Agate Gemstone Spiritual Protection Powers Crystal Point Lucky Charm Pendant NecklaceArrowhead Magic Amulet Black Agate Crystal Point Lucky Charm Pendant Necklace Size: Approximately 2 inches long. Each Arrowhead Amulet is Hand Carved and made with Love and Care. Ready to Wear with Waxed Cotton Cord which adjusts from 15" up to 24" long. Each Amulet is Made from Gemstone Crystal and may or will have Natural Inclusions and Specks. Comes with Branded Packaging