The Iron Amulet and Binding Charms took Atticus 750 years to craft, bind and complete. The necklace is built around a central iron amulet forged from a cold iron meteorite. With the help of an Iron Elemental, Atticus bound the iron amulet to his aura providing him with protection from magical attacks. Iron is the antithesis of magic and it gives him a unique protective field against magic users and the Fae. Due to its alien origin, cold iron has no bond with the earth and is able to block or destroy magic better than iron found on earth would. The iron amulet is cast in actual iron and measures approximately 32 mm (1 1/4") in diameter and weighs approximately 11 grams. The charms are available in your choice of sterling silver or pewter. The charms measure approximately 13 mm (1/2") by 13 mm (1/2"). The charms weigh approximately 1.1 grams to 2.1 grams in sterling silver, approximately 1.2 grams to 1.7 grams in pewter. The iron amulet and binding charms are hung on a 20" long stainless steel rolo chain. The chain measures approximately 4 mm (1/8") thick. Atticus O'Sullivan is a character in the Iron Druid Chronicles book series 2011 by Kevin Hearne. "Iron Druid Chronicles" and the characters and places therein, are trademarks of Kevin Hearne under license to Badali Jewelry. All Rights Reserved.