The Uni-Ball Eye Fine UB-157 Rollerball Pen features a market-leading liquid pigment ink system. An advanced Uni-Flow mechanism ensures continuous, skip-free handwriting. The tamper-proof Super Ink technology resists water and fading. A transparent ink viewing window enables quick reservoir tracking. Its stainless steel tip handles rigorous daily office workloads. It delivers an executive, smudge-proof aesthetic layout for notes.