Tombow's Fudenosuke Brush Pens are available in hard or soft tip and black and gray ink for different writing techniques. Great for calligraphy, these pens feature dual brush tips, one hard and one soft for multi functional use. This brush pen has a twin tip with both Black and Gray ink. Non-refillable. Tombow is passionate about offering the finest and most innovative executive pens, office supplies, and arts and crafts products on the market today. Whatever your project, from preparing documents to scrapbooking to fine art projects, you can count on Tombow for unmatched quality and design.