Vented refill means the pen won't leak or explode on airplanes, making it ideal for business travelers.
Uni Super ink is specially formulated to become trapped in paper, helping prevent criminal check washing and other document alteration.
Quick-drying, acid-free, archival-quality ink is fade- and water-resistant to last over time. Uni-flow system ensures a steady flow of ink for consistent line and color intensity.
Visible ink supply so you know before you run out
They're perfect for detailed, precise and controlled writing and drawing.
Each pen contains smooth flowing gel ink thanks to the twin-ball mechanism which prevents ink back-flow.
Grip material: Rubber
Ink characteristics: Acid-Free, Archival Quality, Fade-Resistant, Fraud Prevention
Ink composition: Pigment-Based, Water-Based
Clip material: Plastic
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