The pigma Micron 003 Blackwith a line width of 0.15 mm , delivers a consistent line, as well as superb colour transferal. The unique sakura pigma™ ink will not bleed through paper, is permanent, waterproof, fade resistant, quick drying and pH-neutral. Ideal for: Everyday writing, Bullet journaling, Hand lettering, Editing, Writing summaries, Correcting exams, Making exams, Mind mapping, Design thinking, Check lists, Diary writing, Sketching, Comic drawing, Writing notes, Writing messages, Handwriting, Sketch noting, Scrapbooking. Suitable for writing on virtually any porous surface, extremely suitable for use on tracing paper. Pigma micron fineliners are vailable in various nib sizes and colours.