Pentel KF6-A rollerball refill, black, 0.3 mm

These refills give you smooth writing comfort in your Pentel Hybrid Gel rollerballs.⁠‌‌‌‍‌‌‌‌‌‍‌‌‍‍‌‍‍‍‌‍‍‌‍‌‍‍‌‍‍‍‌‌‌‍‌‍‌‌‍‌⁠ With a 0.3 mm line width you write precisely and neatly, perfect for detailed work and notes.⁠‌‌‌‍‌‌‌‌‌‍‌‌‍‍‌‍‍‍‌‍‍‌‍‌‍‍‌‍‍‍‌‌‌‍‌‍‌‌‍‌⁠

What does this refill do, and when do you need it?
A rollerball refill keeps your rollerball pens in use when the ink runs out. The Pentel KF6-A refill features gel ink technology that writes smoothly and dries quickly. You need this refill if you use Pentel rollerball pens of specific models and want to make them fully functional again.

Why choose this specific 0.3 mm variant?
The 0.3 mm line width makes this refill ideal for precision work where you need thin, accurate lines. With a ball diameter of 0.6 mm, this refill produces fine black lines that are perfect for detailed writing, drawing or note-taking where legibility and precision matter.

How does the gel ink technology work?
This gel ink refill combines the advantages of ballpoint and felt-tip ink. The gel ink flows evenly from the pen without smudging or leaving blots. You get a consistent ink flow that does not dry out during use, for a pleasant writing experience without having to apply pressure.

Compatibility: check the correct pen models
This KF6-A refill only fits the Pentel Hybrid Gel Grip K116 and Hybrid Roller K106 models. Check the model number of your pen before ordering, as this refill is not universally compatible. The reference code KF6-AX helps you identify the correct refill for your specific pen model.