10 Open Stock Sakura Pigma Micron 03 PEN 0.35.mm - Black Ink 10 brand new sakura pigma micron 03 pens: Ink Color Black Ink micron 03 has a .35mm line width Archival quality ink for use in acid-free environments Chemically stable, waterproof, and fade resistant No smears, feathers, or bleed-through on most papers technical and artistic applications.