Manuscript Pen-Manuscript Fine Liner Pen Twin Pack: Blue. The fine liner pens ergonomic finger grip design steadies the hand, giving a smooth and even delivery of ink when writing. The longer writing length means that it will not let you down and is ideal for writing, sketching and fine lettering. This package contains two blue fine liner pens with a 0.3 line width. Conforms to ASTM D4236. Imported.