This beautiful Lab pups mailbox cover is made to fit any standard (T1) rural mailbox 6 1/2" x 19" deep. This handsome design by Jim Lamb is screenprinted on durable vinyl material to withstand almost any temperature extreme. The reusable cover easily attaches to any steel mailbox with a magnetic strip along each side, and comes with a set of 1 inch self-adhesive vinyl numbers which you can place on the cover or the door of the mailbox. These also work on plastic mailboxes with the purchase of an adapter kit which you can order in our store.