Gaines Leaf Design Wall Mount Mailbox - Black Satin Nickel Color - Black Satin Nickel Constructed from aerospace-grade, die-cast rust-proof aluminum. Easy installation-all hardware is included. Comes with simple instructions. Hardware is Included. Mailbox slot size - 12"W x 3.5"D Height - 14-3/8" , Width - 14-7/8" , Depth - 7-1/2" , Weight - 13lbs