Compatible with Gibralter XL-Capacity mailboxes and our Rural Mailbox Post.

Made from durable galvanized steel and pre-drilled to mount directly on to the boom arm of our Rural Mailbox Post. All required hardware is included for a worry-free install. 

Dimensions: 10.75" x 16" x 1"
*Note: Mounting Plate fits inside the mailbox pocket for mounting purposes, and therefore is not the same overall/outer dimensions of the mailbox.