With this special water pen 'Waterbrush' from the Japanese brand Kitpas, children can turn chalk on paper into watercolor paint. Squeezing the pen and sweeping it over the chalk drawing creates a watercolor effect.
The pen contains a water reservoir, similar to ink in a fountain pen. The water ends up in the brush when squeezing. By moving the wet brush over the chalk drawings, the colors flow together.
The pointed brush allows precise work. The size of the water pen makes it easy for little hands to hold.
Rinse the water pen after use. Then let it dry well.