The item is a sterling silver Saint Christopher pendant and chain. The pendant measures 1 x 7/8 inches or 2.54 x 2.2225 centimeters. The back of the pendant is plain and we can engrave it for you at no charge. The chain is a 20 inch long silver curb chain with a lobster claw catch. This item is made to order so please allow approximately 4 days before we can ship. He is the patron saint of travelers and motorists. I will supply a pendant box.