This is a U.S. National Defense Medal style ring made from Sterling Silver (.925). Check out the deailing on the ring sides. The ring design was crafted by Vietnam Veteran Bob Stringer. Each ring is sized to order, so please submit e-mail or phone contact information so that the correct size may be provided. As each ring is made to order, please allow 4-6 weeks for delivery, AFTER ORDER IS CONFIRMED AND PAYMENT HAS BEEN SUBMITTED.