Set of 9 Black Extra fine tip Multiliner pens: 0.05 mm, 0.1 mm, 0.2mm,0.3 mm,0.4mm, 0.5 mm,0.6mm, 0.8 mm, 1.0 mm. Ideal for architecture, anime, ultra fine liner, writing, enginering, bible study, detail space. Pens comes with a collection package, individual slots to hold each pen, so you can always keep them neatly organized and ready for use.