Brush Pen with two tips, can also be used for watercolor painting. The fine tip (line thickness 0,8 mm) is mainly used, when drawing exact lines. The other tip (line thickness 0,8 mm - 3,3 mm) is thicker and flexible like a brush. Tombow ABT Dual Brush Pens are available in 107 vivid colours + blender. Water-based – colours can be mixed together and used as watercolours. Perfect for creating cards, coloring stamps, handlettering, Art Journal, Bullet Journaling en Planners. These pens are odourless. Colours are not light-resistant.