Set of 5 pens in bold tip-Light Warm Grey, Warm Grey , Blue Grey, Cool Grey and Green Grey Attractive writing on white or black or dark-color papers. Opaque grey colors on dark-color papers and photos with 1.0mm ball. Smooth-writing, very dense ink and constant ink flow from start to end. No smears, feathers, or bleed-through on most papers. Line width: 0.5mm.