Green Writing Board is a writing surface that is used in classrooms, businesses, and other settings. It is typically made of a durable, easy-to-clean material such as porcelain-on-steel or porcelain-on-aluminum. The writing surface is usually green, but can also be black, white, or any other color and available according to customers' requirements. Its surface is designed to allow smooth writing, erasing, and quick cleaning with a damp cloth.