Now you can display your patriotism on your mailbox too. Flag design magnetic mailbox cover is heavy-duty, weatherproof vinyl with magnets to grasp on to standard metal mailboxes. Decorative mailbox cover includes anti-theft locking strips so you can put it on plastic mailboxes too. Set of self-adhesive black address numbers included. Has opening for mailbox flag. 18" long and 20 3/4" around. Reusable.