Gelly Roll Metallic Medium Point Pens 5/Pkg-Sepia, Burgundy, Hunter, Blue & Black A roller ball pen that is easy and comfortable to write with Archival quality ink  chemically stable, waterproof, and fade resistant No smears, feathers, or bleed-through on most papers Writes on both light and dark papers as well as glossy and matte surfaces. 1.0mm ball with a 0.4mm line