This economical pack contains 6 high-quality ‘Pigma Micron’ fineliner pens in varying widths (0.2mm to 0.5mm) in a handy, portable wallet. This model of pen is one of the few disposable drawing pens to use archival-standard ink. This permanent, archival-quality ink is 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 - Package dimensions: 8.4 x 1.3 x 15.2cm - Brand: Sakura - Package weight: 63.5g - Main materials: Plastic and archival ink - Number of pieces: 6 pens - Permanence: Archival quality permanence - Ink colour: Black - Tip type: Fineliner - Tip size: 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.45mm and 0.5mm