Pen UNO Black Ink Cartridge - Hi-Tec C Coleto - 10 Pack

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Pen UNO uses the Hi-Tec C Coleto gel ink refill (except for the Titanium edition which uses standard D1 refills). We offer a 10-cartridge box in 0.4mm black ink. The Hi-Tec C Coleto refill provides a smooth and unparalleled writing experience.