Coroplast Signs are ideal for indoor or outdoor use and are versatile, durable, portable and waterproof. They are easy to clean & light-weight. Made of corrugated plastic, they can be used in all seasons. Coroplast Signs can are done in full color and have hollow grooves that run either horizontal or vertical. Coroplast Signs are often used for garden signs, campaign or political signs, real estate signs and other promotional and advertising signage. We offer coroplast signs with or without H stakes used to mount in the ground.