The item is a sterling silver Saint Elmo oval silver pendant and silver chain. The chain is 18 inches long and has a lobster claw catch. 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. This item is made to order so please allow approximately 4 days before we can ship it. I will provide a pendant box. He is the patron saint of childbirth and stomach diseases.