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.