Set of 3 Gelly Roll pens in three nib sizes: 05 Fine (0.5mm ball / 0.3mm line), 08 Medium (0.8mm ball / 0.4mm line), and 10 Bold (1.0mm ball / 0.5mm line) for bright white lines to elevate your art to another level using the range of thick and thin lines, small detail and unique bold marks.