NINGSAKaco G2 Gel Ink Refills for Retractable Gel Pens, Fine Point(0.5mm), Pack of 10 (Black)

So happy to have found these refills! They fit perfectly in one of my favorite pens. They are fine point and the ink is dark and flows smoothly. As someone who uses a paper planner, I am super particular about my pens and ink and this refill is magic! I’ll definitely keep these in my favorites list for re-buying!

These refills write very smooth. They don’t skip and the ink dries quickly. Very nice to write with!

I have a Rifle Paper Co refillable pen. This was recommended by Rifle to use. It works really well and is a great comparison to the ink in the pen when I got it. It does occasionally stop working if the pen was standing straight up, but otherwise works well, is smooth and my pen still feel great to write with.

My kids gave me this pen. It writes with a nice fine point and I can make tiny notes with it. The ink in it ran out too fast so this refill kit is perfect for me

Fits my Rifle Paper Co ink pen. Ink flows well & dries quickly. After it dries, I’m able to highlight what’s written without the ink bleeding under the highlight. Great price. I’m very pleased.

Would recommend if you have a Rifle Paper branded pen like mine (see images!).These black ink refills come in a pack of 10. Really appreciate that they're capped to prevent inkwell from drying out. Ink comes out evenly with a nice rich pigmented black. Dries quickly and doesn't smudge.First time replacing an ink cartridge and this was easy and intuitive, lol. Will be buying again but I suspect these will last me a long time. 5 Stars!

This cartridges fit my favorite Rifle Paper pen perfectly (mine is the one with the cap, not the retractable pen). Glad I didn’t have to get a new pen!

I have ordered refills like these from many sources. It was always disappointing because either the ink was not black enough or it was not gel or the word "fine" really meant 0.7mm (which is not fine). However, THESE REFILLS are truly gel, truly 0.5mm and truly black. I STRONGLY recommend and I will order more soon. This is a completely honest review of a pen lover.