Asia's long history of chinese calligraphy and drawing make it a great source for quality brush pens. These brush pens from Pentel feature nylon brush tips and are filled with aqueous dye-based inks that are great for painting or sketching on the go. Flexible nibs allow varying line widths and are easily refilled with black or gray color cartridges.
The Pentel Standard Brushes differ according to the denseness of the brush tips. For example, the Tsumi tip is more densely packed than Suki tip (meaning it has more hair). If we rank the tips in terms of thickness, they would be: Medium > Tsumi > Suki > Super Fine.