Recognized and admired by artists from around the world the Fude Pen No. 24 Kuretake features a soft synthetic filament brush tip that can produce a wide range of lines of various thicknesses, making it a great choice for manga drawing, calligraphy, drawing, illustration, sumi-e and more. Fude Pen No. 24 slim, versatile size is perfect for creating details as well as bold "brush strokes". Water-based pigment ink that is water resistant and light resistant. Mechanism with smooth and steady ink flow.