The item is a sterling silver Saint John Licci pendant and chain. The chain is a sterling silver curb chain with a lobster claw catch that measures 18 inches long. The pendant measures 3/4 x 1/2 inches or 1.905 x 1.27 centimeters. The back of the pendant is plain and we can engrave it for you at no charge. He is the patron saint of head injuries. We will provide a pendant box. This item is made to order so please allow approximately 4 business days before we ship.