Double-colored chalk

The utility model relates to a double-colored chalk, which consists of a first conical chalk head and a second conical chalk head in reverse adhesion. The first conical chalk head and the second conical chalk head are made of chalk dusts with different colors. Ordinary chalks are extremely single in color, one chalk has only one color, and in teaching classes, a teacher needs to pick up another chalk with a different color to make chalk marks of different colors, which is troublesome. The double-colored chalk can be used to write two different colors, and has the advantages of extremely convenient use and capability of saving chalks.