Salsbury 4800 Series Eagle Rural Mailboxes are U.S.P.S. approved. Manufactured by Salsbury Industries to USPS-STD-7B specifications. Made entirely of aluminum. Feature a 1/4'' thick decorative eagle plate, handle and adjustable signal flag available in a gold or silver powder coated finish. Constructed of a 1/8" thick extruded aluminum body with a 1/8" thick die cast aluminum front door and rear cover. The die cast door is attached to the body with a full-width stainless steel hinge allowing for smooth operation.