The high-quality ‘Pigma Micron’ fineliner pen from Sakura is available in 8 widths to suit your needs and preferences. The #003 size pen features the thinnest line width in the range, perfect for detailed drawings and fine sketches. This model of pen is one of the few disposable drawing pens to use archival-standard ink. The ink is permanent, archival-quality and therefore waterproof, fade-proof, chemically stable and acid-free. The fineliner nib of these pens gives a smooth, consistent line. - Ink transparency: Opaque - Acid free: Yes - Brand: Sakura - Main materials: Plastic and archival ink - Permanence: Archival quality permanence - Ink colour: Black - Tip type: Fineliner - Tip size: 0.15mm