Faber Castel Art and Graphic, Pitt Artists Pens, Set of 4, Soft Brush Tip (SB) Shades of Grey (FC167804) Pitt Artist Pens from Faber-Castell have pigmented India ink Permanent & water-resistant, use with other dry or wet media Ideal for sketches, drawings, layouts, lettering, and illustration 4 Soft brush tip pens in: Lt. Indigo, Dk. Indigo, Warm Grey I, and Black Made in Germany