suitable for children, students, amateurs and artists.Easy to use and control: just unscrew the watercolor pen holder and add water or ink. Simply squeeze the pen holder to easily control the flow of ink or water. (Note: When filling the pen with water, make the amount of water lower than 2/3 of the pen).High-quality nylon brush: The high-quality nylon brush head ensures that the watercolor brush remains intact and will not be sprayed, scattered, or scratched during use.Multipurpose watercolor paint: You can draw the finest lines or colored lines, mix colors and create new shadows. Very suitable for solid or powder color crayons with watercolor crayons, water-soluble pencils, water-soluble pigments, pigments, pigments.Easy to clean: Use water to clean after use.Change your life:No messy watercolor brushes give you peace of mind when painting. No need to deal with messy water bowls and overflow!colour: parentMaterial: nylonsize: Flat head brush:Trumpet-Hair width: 0.6cm, hair length: 1cmMedium-Hair width: 0.8cm, hair length: 1.6cm-hair width: 1.5 cm, hair length: 1.7 cm;Sharp brush:Trumpet-Hair width: 0.3cm, hair length: 1.2cmMedium-Hair width: 0.5cm, hair length: 1.5cm-Hair width: 0.6cm, hair length: 1.9cmPackage Contents: 12 * water pens(6 flat brush,6 sharp brush)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.