Door hanger advertising is a unique way to catch a prospect's eye in a place where they aren't expecting it. Because door hangers must be removed from the doorknob, they are likely to be read and make an impression that lasts beyond a simple glance. Door hangers are perfect for limited-time offers, promoting new products and services, or bringing attention to your business in a new sales area. Add extra protection from the elements with a durable aqueous coating.