This Book of Kells necklace features both the Trinity knot and a Celtic spiral design. The rhodium plated and enameled Book of Kells pendant measures 1/2” wide x 1 1/4" tall, including the jump ring and the chain bail; a 18” long rhodium plated chain with a lobster claw clasp with a 2 1/2" extender chain with a tiny Book of Kells tassel is included. The Book of Kells necklace is gift boxed with Celtic knot and Celtic spiral history cards, complements of The Irish Gift House; it is crafted under license by Solvar Jewelry in Dublin, Ireland.The brand name and logo featured on this Irish jewelry are registered trademarks of Trinity College Dublin.