Set of 6 Faber-Castell PITT Artist Brush Pens- "Terra"- one each of dark naples yellow, terracotta, cinnamon, raw umber, caput mortum, and walnut brown. Brush pens are pigmented India ink that is archival, acid-free (pH neutral), lightfast, and odorless. Ink is smudge-proof and waterproof when dry. Can be blended and color can be overlain. Tapered brush nib allows for a multitude of line widths and blending options. PITT Artist Brush Pens offer vibrant, rich, versatile colors in a very portable format- a must in any visual journaling kit. These pens are one of our favorites!