Check the listing for details. Gibraltar Mailboxes Black Mailbox Address Plaque. Color: Black, Condition: New. Listed at 27.99 USD. Gibraltar Mailboxes Black Mailbox Address Plaque The attractive Address Plaque is a perfect way for homeowners to add numbers to their mailbox or post with a bit of style. This oval-shaped, two-sided black plaque is made from rust-proof polypropylene plastic treated with an ultraviolet inhibitor to extend its service life. The plaque can be mounted horizontally or vertically in a variety of positions. Its highly visible reflective material makes identifying addresses quick and easy, even at night. The Address Plaque accommodates five numbers when it is mounted horizontally and four numbers when it is mounted vertically. Self-adhesive 2 in. tall numbers and mounting hardware are included, along with an easy-to-use guide for aligning numbers on the plaque. Oval address plaque makes identifying your address easy Reflective backing helps with night visibility Compatible with any mailbox at least 14.5″ in depth Can also attach to a mailbox post Mailbox sold separately