This superior-quality fineliner from Copic is made with pigment ink that is waterproof, lightfast & resists alcohol-based markers once dry, making it perfect for sketching or outlining to be later coloured with Copic markers Optimal reproduction properties & resistance to UV light is guaranteed. These Multiliners were specially developed for illustrators, graphic artists, industrial designers, architects & much more. Copic are seem as one of the highest quality professional graded pens & markers available in the world today. Nib Sizes Included 0.03 0.05 0.1 0.3