What is the size and color of the ink refill for this gel Ink pen?

It comes with 0.5mm black gel ink refills, which write smoothly and dry quickly. The pack includes 6 gel ink pens with refills

How is the writing smoothness of Yuxingrong gel pens? Will it skip ink or stutter when writing?

Our 0.5mm precision roller ball tip delivers steady, even ink flow. It writes extremely smoothly without ink skipping.

Are these gel pens suitable for both office and school supplies?

Perfect for office paperwork, student homework, journaling, planners and daily signing, versatile gel pens for school & office daily supplies.

Is the click pop-up structure durable for daily frequent use?

The internal retractable click mechanism is made of high-quality parts, passed thousands of press tests. It rebounds smoothly without jamming, no loose or broken issues under daily frequent school and office use.

Will the black ink smudge or stain my hands after writing?

These retractable ball gel pens use advanced quick-dry black ink. The ink dries within seconds after writing, no smudging, blurring or hand smears, which is very friendly for left-handed writers.

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