AMB1106 Features: * Locking post mount mailbox * Large mail retrieval door located in back of mailbox * Large delivery door that can accept parcels and mail bundles * Concealed outgoing mail clip and flag * Use 7530-10 adapter plate for 4" x 4" wood post installation Construction: * Constructed of heavy gauge aluminum and galvanized steel Specifications: * Works with 5120OC5100 and 5120WL5100 locks and 5140 key blanks Dimensions: * Dimensions: 15" H x 16.6" W x 15" D