Item Type: Watercolor Painting Pen Specification: 12 Colors/ Set Pen Size: Approx. 16.6 x 1cm / 6.5 x 0.4in (manually measured, there is a small distance difference) Package List 24 x Pen 1This soft pen tip can be used for shading and coloring, outlines, details and notes, which can meet your different requirements for artistic drawing. 2The ink of this watercolor pen brings you a quick-drying painting feeling. The color is vivid, uniform, non-toxic, blendable, odorless, and non-bleeding. 312 commonly used bright colors, suitable for coloring, illustration, graffiti, diary, calligraphy, etc. 4This watercolor painting pen is an ideal gift for artists, students and even children. 5Suitable for helping kids, teenagers and even adults express their creativity on birthday cards, DIY photo albums, outdoor posters, restaurant menus, custom coffee cups, household tools, cardboard boxes.