[BRUSH TIP] High-quality, synthetic brush tip with very fine fibers creates thick and thin lines with precision. Special hair tip stays uniform to prevent splitting, and has excellent elasticity and durability. Due to the long body, it is easy to write and draw with, and ideal for both beginners and proffessionals. High-quality and longevity of the brush is a guarantee that this product is Made in Japan. | [FLEXIBLE BRUSH] Amazing extra fine tip is great for art, calligraphy, brush lettering, sketching, illustrations, outlining, inking, wash drawing and more! | [SMUDGE FREE INK] The Takujo uses a black, water-based dye ink that blends and mixes with water, but will not bleed trough paper. It is perfect for left-handed artists. | [REFILLABLE] The fountain brush pen's structure is the same as a fountain pen, therefore ink cartridges are interchangeable. Available refill cartridges: DAN105-99H?Water-based Dye ink and DAN106-99H?Water-based Pigment ink | [ESTABLISHED MANUFACTURER] Kuretake launched its first brush pen in 1973, continuing to expand the line with each product having unique features, and a variety of uses. The brush pen is most commonly used for calligraphy, lettering, sketching, outlining, inking illustrations and ink washing.