Mailbox Mounting Board, 6" W x 12.5" D x 1.1" H, Universal, Plastic, Black, Gibraltar Mailboxes PLMB0060
The plastic mounting board can be installed on any Gibraltar 4x4 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.
