UP45 contains

and layering transparent colors

or pulling a controlled amount of water into a small area without flooding the surrounding paper

this features themes from writers such as: T-Kid

tombow empty water brush pen broad flat Dart UP45 containsThe Broad Flat is the wide coverage tip in Tombow's water brush range a chiseled nylon head built to spread water and pigment evenly across a larger area, rather than the streakier result a round tip tends to leave on a big wash. It's the tip to reach for behind a calendar header, a sky background, or any flat color block that needs to cover ground without showing brush strokes. Like the rest of the range, the barrel doubles as a water reservoir: fill