Uni-BallBallpoint Pen Black Ink Refills(UMR85N.24), 0.5mm, for Signo 207 Retractable Pen(UMN-207-05) ,× 6 Pack/total 6 pcs (Japan Import) [Komainu-Dou Original Package]

I like some of the pens I use often, but dislike not being able to find refills & have to resort to buying new pens. Took a chance on ordering these refills & they actually fit the pens & work perfectly. Would order this product again.

This is the second set of these refills that I have ordered, and I still love them. Easy to replace,very smooth writing with no skipping, and they last a good while. For the longest time I used them with my original Uniball signo pen, but just realized that they fit in this other random pen. Idk why I never tried before - there is one spot where there's a little ridge or something that would occasionally bother me and I had another black pen that was comfortable to hold but had garbage ink. Aaanyway, my point is that these are great refills and you should definitely try them.

These work great to refill my Uni-ball Signo Micro pens. I get to reuse my pens instead of throwing them away and putting more plastic into the environment.

The Uniball Signo pen ink is the best pen ink that exists, and this is the real deal at the best price I could find! I'll admit I feel like the .7 ink dries extremely quickly and so I expected the .5 to dry even better due to its smaller size, but it seems to be the same speed. Other than that, though, they're perfect--no skips, no ink pools, no problems. They come individually wrapped and capped. Good stuff!

the pens are truely fantastic works and It is dumb to throw them away when the ink runs out. These inserts were made for the specific pen and it was like getting a 4 dollar pen for 25 cents.....the numbers are for emphasis and not specific....I now have a pen that may last years instead of a few months

There could be more ink in these refill cartridges. I go thru them very fast. Most times I have good results with the way they write. I had one cartridge that leaked. I will continue to use them.

Great way to keep using these pens by using refills. Good value.

This package of pens are very handy to have on different parts of the house especially when a pen is needed. They're well made, last for ions and very comfortable to use.