Invented in the 1980s, the Gelly Roll was the world's first gel ink pen. Since then, Sakura has continued to refine and improve their gel ink formula. This Gelly Roll Metallic pen features shimmering, reflective ink that is also archival, waterproof, fade resistant, feather resistant, bleed resistant, and resistant to chemicals used to commit check fraud. It shows up well on both light and dark papers, as well as matte and glossy surfaces. Use it to create beautiful artwork, decorate your journal or planner, or give your letters a distinctive flair.