Capped rollerball needle pens deliver smooth flowing ink, allowing you to create concise and flawless documents with vibrant lines in a rich hue. Archival-quality ink is perfect for notes, lists, signatures and record keeping. Uni-Flow Ink System ensures a consistent, delightfully fluid writing experience. Fade-proof liquid roller pens have uni Super Ink that makes them water and fraud-resistant. A visible ink supply window indicates the level of ink, so you don't run out unexpectedly. Durable metal clip ensures that your favorite roller pen is always at hand.