The Pentel Brush Pen is ideal for all kinds of drawing, cartoons (particularly Manga) and calligraphy. The fine synthetic bristles allow you to produce everything from fine details to wide strokes, while also being durable and retaining their shape well. The pigmented, water-based, fade-resistant ink dries within 60 seconds so there's less chance of your work smudging. The Pentel Brush Pen is easily refillable, with four refills included in the set, and it's also leak-proof, so it's safe to take out and about with you. In all, it's no wonder so many artists and illustrators regard the Pentel Brush Pen as an indispensable tool.