Faber-Castell Pitt Artist Pen M Warm Gray 0.7mm marker Ink drawings have a long artistic tradition. They offer expression and durability to drawings and can be combined with other techniques. This product combines the benefits of super lightfast pigment ink for artists with the benefits of a modern, easy-to-use marker. Great resistance to the action of light. Elongated tip set in metal. Water resistant, permanent. Odorless, acid-free, pH neutral. Does not go through the paper. Line width M = 0.7 mm. Warm gray color. Brand: Faber-Castell.