- Archival quality ink - waterproof, chemical proof & fade resistant (except "Clear Star" and "Sparkle" series).
- 1.0mm tough ball producing 0.5mm line-width.
- No smears, feathers, or bleed-through on most white or light colored papers.
- Smooth-writing, very dense ink & constant ink flow from start to end.
- Available in 12 ink colors.