The Pigma Professional Brush series offers versatility from fine hairlines to bold strokes. These durable brush nibs respond to pressure and direction changes with smooth, consistent ink flow. The deep black, archival-quality Pigma ink ensures lasting marks. Artists will appreciate the portability and continuous ink flow, eliminating the need for messy inks. Manga artists, illustrators, and lettering professionals will enjoy the ease of creating expressive strokes. The brush nibs provide excellent bounce and memory over time. Always replace the cap when not in use. Do not leave uncapped for more than 20 minutes. Store horizontally. Avoid dropping or shaking the pen to prevent damage or leakage. These pens are certified non-toxic, approved by Acmi, and bear the Ap seal. At Sakura, we believe in the unique human ability to create. We foster creativity, Whether for artwork, expression, problem-solving, or storytelling, creativity is at the core, helping us reach our full potential.