Automatic chalk with erazer head

The utility model relates to an automatic chalk with a board eraser head which is a writing product of stationery, belonging to the technical field of products of stationery. The utility model is characterized in that one end of an inner tube of an automatic chalk is connected with a snap fastener, and the other end is connected with a spring and a clamping head; one end of an outer tube of the automatic chalk is connected with a board eraser head, and the other end is connected with a joint. The utility model solves the problems of dirty hands when a chalk is used to write, breaking chalks, inconvenient portability, etc. The utility model has the advantage of convenient operation during writing. Wrong words or wrong strokes can be erased by the board eraser head.