Dry erase markers are special writing tools designed for use on non-porous surfaces, such as whiteboards. They contain a quick-drying ink that can be easily wiped off with a cloth or eraser, making them ideal for classrooms, offices, and homes. The markers come in various colors and tip sizes, allowing for versatile use in presentations and brainstorming sessions. These markers typically have a plastic barrel and a felt tip, which can be either fine or broad. Dry erase markers are often used in conjunction with whiteboards, but they can also be used on other surfaces like glass and some types of plastic.