Pitt Artist Pens® with 0.4mm Superfine nibs, in crafter color palettes let you journal in smooth, vibrant, odorless color. These India ink pens work on all types of paper without bleeding or skipping. The waterproof ink allows for mixed media techniques and works flawlessly when watercolor or Gelatos® Colors are added on top of the inks. Try them on canvas and fabric! Acid-free and pH Neutral. Store horizontally when not in use.