Extend the life of your Uni-ball One gel pens with these high-quality refills, designed to deliver consistent performance and vibrant ink flow. Compatible with all Uni-ball One series pens, including the Uni-ball One F and Uni-ball One P models . Key Features: Tip Sizes: Available in 0.38mm and 0.5mm for precise and smooth writing. Ink Colors: Black, Blue-Black Ink Type: Pigment-based gel ink that resists smudging and bleeding, ensuring clean and crisp lines. Design: Standard UMR-S refill format, ensuring easy replacement and compatibility. Made in Japan: Crafted with precision and quality materials for reliable performance.
