These Gelly Roll Metallic pens feature shimmering, reflective ink that is also archival, waterproof, fade resistant, feather resistant, bleed resistant, and resistant to chemicals used to commit check fraud. The opaque white ink stands out on dark and colored papers and makes highlights pop in illustrations and comics. They show up well on both light and dark papers, as well as matte and glossy surfaces. Use them to create beautiful artwork, decorate your journal or planner, or give your letters a distinctive flair.