Clear and easy to erase: the chalk has good visibility, and the handwriting is clear and clear after writing, which is easy for people to read and recognize. At the same time, the chalk is easy to erase and will not cause damage to the writing surface. Wide range of applications: chalk can be written on a variety of surfaces, such as blackboard, whiteboard, glass, clothing, etc., flexible and convenient use; In addition, unlike other pigments, chalk can be painted directly on various surfaces without adding water or solvents. Multi-color options: In addition to the traditional white chalk, there are now colored chalk on the market, such as red, yellow, blue, green, etc., so that people have more creativity and visual effects in writing and graffiti.