The Pigma Graphic ink pens feature:
- Archival quality ink, chemically stable, waterproof, and fade resistant
- No smears, feathers, or bleed-through on most papers
- A variety of drawing nibs sizes and types
- In three line-widths of 1mm bullet, 2mm chisel, 3mm chisel
- Writes on fine papers like vellum, (a translucent paper that resembles smooth parchment).
