Watercolor pen, a painting tool. Watercolor pen is a commonly used drawing tool for children. The material of the pen tip is generally carbon fiber, which is usually sold in a box of 12, 24, and 36 colors. The pen tip is generally round. The two colors are not easy to reconcile together. They are generally suitable for children's painting. Can also be used as a marker.

The advantages of colored ink pens are rich colors and bright colors. The disadvantages are that they take a short time, have uneven water content, and unnatural transition. The two colors are not easy to reconcile together, so they are generally suitable for children's paintings. Some color pen shells can also be divided into several vertical watercolor tanks, and each tank is filled with different watercolors, so that the color pen can write different colors of calligraphy and calligraphy or calligraphy and calligraphy with different patterns at a time, and the color can be any Adjusted, one pen can write large characters or large areas of calligraphy and painting at one time, and the color changes are rich, which is more suitable for the creation of calligraphy and calligraphy, improves the painting effect, and helps improve students' interest in learning and the level of calligraphy and painting.