Black Gel Pens Refills, 12 Pack Retractable Gel Ink Pen Refills Bulk, Fine Point 0.5mm Tip Smooth Writing Quick Dry Gel Pen Refills for Journaling Writing School Office Supplies (12 Black)

These are a tiny bit shorter than the pen case I used it in but still worked well. Smooth writing and excellent price. Hate throwing away a whole pen!

Good refill for a good price. Writes very well

Fit perfectly into the Bio-Write pens and they work like a charm. Smooth writing.

Works perfectly to refill Zebra Sarasa gel pens. I have ordered twice.

Smooth, dries fast, lasts a while, doesn’t smudge badly if at all, easy to replace

Fit, worked

My mom likes it better than the .7 because the stroke is sightly thinner.

I have a Sharpie S-Gel pen. The refill will work in this pen, but it is slightly shorter than the original and in use, the pen tip does not extend as far as the original, which may affect how you hold the pen somewhat. The feel of the tip on paper is also rougher, but the ink flows well enough. All in all, it works, but not as well as the original.

Ran out of Muji pen refills and had no nearby store so was looking at alternatives when I came upon these. The measurements matched my Muji pens so I decided to take the risk and buy these. They work pretty well! Too bad the refills are opaque so you can’t see how much is left, but otherwise they fit my knock and cap type Muji pens well and have the same ink quality, smooth writing, and I’ve always been a 0.5 girlie so seems to work for me! Also cheaper than my old refills. Time will tell how long they’ll last in comparison to my previous refills but so far so good!

Looks like the photo , writes well. Bought these for fillers for pens I’ve bought and they write the same . I will just say it says .5 but it kind of is more like a .7 just because of how inky it is. but still love them, glides nicely

These are excellent. I appreciate that I do not need to write out the entire pen.

I am quite picky about the writing feel of my pen. I bought these to use as refills. They are fine, but nothing special really. They have a bit of scratchyness, and ink flow can be a bit spotty. I think if the ball rolled smoother, then the ink would dispense better as well. If you want the perfect writing experience, maybe skip these refills. But for the price, they are ok.

This ink writes so smooth. They also do not transfer to thw other page