The item is a sterling silver Saint Dymphna pendant with a 18 inch long silver curb chain. The chain will have a lobster claw catch. The pendant measures 3/4 x 5/8 inches or 1.905x1.5875 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 4 days before we can ship it. She is the patron saint of runaways and mental illness. I will provide a pendant box.