This pendant is made of stainless steel and ion-plated* with 18K gold finish. This pendant is solid with a flat back. The size of the pendant is approximately 1 1/2 inches in height up to clasp, 1 inch wide and weighs approximately 1.75oz (including chain).This piece is available with a 22-inch necklace, which is 3mm thick. All orders are shipped with a branded velour pouch. *Ion plating is one of the most advanced surface finishing processes in the trade. *Ion plating makes the gold plating more durable, more wear resistant, and also has a higher brightness.