Cast Aluminum Black Column Mount Locking MailboxConvert your non locking Manchester to a locking mailbox with this new locking door insert. Made of powder coated steel, the locking door and plate fit inside of the faceplate and attach to the faceplate and masonry can. Adds security to keep mail out of reach from unwanted hands. Comes with lock and set of keys. Adds security to your column Manchester mailbox Made of tough powder coated steel Attaches to the inside of Manchester faceplate Easy to