This Salsbury Industries Vertical 4 Door Mailbox for USPS Access is big on security. It is constructed from aluminum, which ensures strength and durability. The doors include a 5-pin cylinder cam lock with 2 keys. It is available in multiple finishes and you can choose the one you like and the one which complements the color scheme of the room. This mailbox offers style, function, and elegance. You can mount it directly to a wall and secure it with mounting hardware. It is ideal for apartments, condominiums, and commercial buildings. This Vertical 4 Door Mailbox for USPS Access by Salsbury Industries is a stylish choice for mail delivery.