Mont Marte Premium Graphic Fineliner Set 7pc The Mont Marte Premium Graphic Fine-Liner Set 7pc is a set of fine-tipped pens perfect for artists, graphic designers, and illustrators. The pens have a variety of tip sizes, from 0.05mm to 1.0mm, which makes them ideal for detailed work. They also have light-fast German ink, meaning your drawings will not fade over time.