Sensationally brilliant opaque colors on dark-color papers and photos with 1.0mm ball.
- Attractable writing on black or such dark-color papers.
- Smooth-writing, very dense ink, and constant ink flow from start to end.
- 5 Fluorescent colors glow under a black light source (UV lamp).
- No smears, feathers, or bleed-through on most papers.
- Line width: 0.5mm.