These fine-point pens feature waterproof, quick-drying pigmented ink for permanency and true color reproduction. Use for graphics, drafting, illustration or accounting. Experience smooth, skip-free writing and crisp ink colors that leave consistent lettering and lines every time. The archival ink is chemically stable and fade-resistant. It does not smear, feather or bleed through on most papers. Choose from a range of nine nib sizes including 003 (0.15mm), 005 (0.20mm), 01 (0.25mm), 02 (0.30mm), 03 (0.35mm), 05 (0.45mm), 08 (0.50mm), 10 (0.60mm) and 12 (0.70mm).