These unique and versatile brush pens allow you to create thick or thin brush strokes that are perfect for brush lettering, stamping, and mixed media. Made with odorless, waterproof, lightfast and archival India ink so your images stay bright and vibrant for many years to come.. Superfine 4mm nib pens in crafter color palettes let you journal in smooth, vibrant color. These India ink pens work on all types of paper without bleeding or skipping. The waterproof ink allows mixed media techniques to work flawlessly when watercolor or Gelatos are added on top of the inks. Try them on canvas and fabric! Mix & Match Writing Set Blue/Green- 4 pens in colors similar to Lime, Teal, Blue and Dark Blue. All with a 0.4mm nib point for fine writing and details.