Ink Color: Multicolored
• uni-flow ink system creates a steady flow of water-resistant ink and smooth, consistent color
• Exclusive pigment-based ink forms an indelible bond in paper for intense coloration and document security
• Archival quality, acid-free ink for valued documents
• Quick drying, water-resistant ink
The uni-ball rollerball pen has free flowing and fluid ink, similar to a fountain pen. You can actually feel the ball contacting the paper and see the ink flowing out of the pen as you write. And like all uni-ball pens, each roller pen features waterproof uni Super Ink which protects against water, fading, and fraud. Archival quality and acid free ink is great for documenting and record keeping. The larger particles deliver solid vivid colors every time you write.