Sakura Gelly Roll Moonlight Pen Set, 1 mm Bold Tip, Assorted Colors, Pack of 10 Gelly roll moonlight 10 (bold point) gel ink pens A roller ball pen that is easy and comfortable to write with Archival quality ink chemically stable, waterproof, and fade resistant. Fluorescent Moonlight colors are not fade-resistant No smears, feathers, or bleed-through on most papers Best effects on black paper and can be used on white paper