Stability and Rust-Resistant This iron mailbox provided strength and stability, and made with powder coating, won't rust.Lockable Design With 2 spare keys, with a locking system ensures your important mails security. Waterproof There is a waterproof flap cover on the top of the mailbox, front with retrieval door and newspaper roll brings your family more convenience. Quick and Easy Installation These mailboxes can be easily wall mounted, the installation process takes no more than 2 minutes. Multi-Purpose Drop Box. Deal for convenient and secure drop box applications, including night drops, key drops, payment drops, interoffice mail and much more.