Magic Metal Skull Door Knocker Necklace Gold Bones Gothic Skeleton ND1 Steam Punk Pendant Fashion Jewelry Ships from the USA Hollow Skull Door Knocker Necklace. Gold tone pendant with antique finish. Skull Pendant Size: 2.5 inches by 1 inch. Chain Length, Open From Clasp to End: 28 inches. Makes a perfect gift. Search Magic Metal Jewelry for more jewelry styles.