The Plastic Mounting Board can be installed on any Gibraltar 4×4 wood or plastic post. Made from durable polypropylene plastic that will never rust, the mounting board has an ultraviolet inhibitor to extend its service life. Mounting hardware is also included with the Plastic Mounting Board.
Constructed from durable, rust-proof polypropylene
Mounts to a 4 x 4 wooden or plastic post
Adaptable to fit various size post mount mailboxes