It's a kind of graffiti in which children participate. In fact, children can doodle with the opponent, eyes, brain coordination, enhance the brain and the command of the opponent, as well as observation, thinking ability, imagination, etc. , has a very good promotion effect. Doodling is an important way for children to express their emotions and thoughts. It's a very vivid language. For the graffiti era children, painting is a kind of game, happiness is the greatest harvest.