uni-ball® InsightTM/MC rollerball pens are designed to provide consistent, free-flowing ink in order to deliver fluid writing the moment pen hits paper. When inspiration strikes, count on the performance and design of uni-ball.

· Exclusive uni-flow ink system™ regulates a steady flow of waterproof ink to the point for consistent smoothness and color intensity down to the last drop of ink
· Ink-o-meter allows for visible ink supply so you know before you run out
· Features uni Super Ink that helps prevent against check and document fraud
· Archival quality and acid-free ink for documenting and record-keeping
· Refillable