Plastic replacement kit for most rural mailboxes. When it’s time to replace a worn, damaged, or missing plastic mailbox flag, this mailbox flag kit provides a convenient solution. Red flag is easy to install and made from durable and sturdy polypropylene plastic so it will not rust. Kit includes: flag, flag bracket with locating pins, plastic spring washer, shoulder screw, and a 10-24 nut. Installation instructions included.