Why buy our mailbox address plaque verse other plaques you can buy online? The whole purpose behind our plaques is to make your mailbox address stand out as much as possible so that emergency response, delivery drivers and others can find your address with ease.  The background is in black and the numbers are in white. This makes the address numbers shine super bright making it extremely easy for everyone to see. Your address will stand out 10 times further then traditional mailbox numbers. Mounts to the top or bottom of mailbox as well as, on left or right of the mailbox post with numbers being able to be displayed horizontal or vertical and works with any size mailbox, metal or plastic. We have different size plaques based on the amount of address numbers you have. This makes it so you are not left with empty space if you have a two or three number address. For addresses with 4 and 5 numbers we have a larger plaque so your numbers stay 3.6 x 4.1 and do not have to be shrunk down. High reflective vinyl displays on both sides.  Mounting Hardware Included: ( 2 ) #8 32 3/4 Inch Rust Proof Stainless Steel Bolts, ( 2 ) #8 32 Rust Proof Stainless Steel Nylon Insert Lock Nut ( 2 ) #8 32 1 Inch Rust Proof Stainless Steel Screws.