Uni Jet Stream Prime High Grade multi ballpoint pen - Refill - 0.7mm - Black - SXR-200-07

I have several small EDC pens that use this size pen refill and UniJet has been my go-to refill for them. I use both 0.5 and 0.7 sizes and have been happy with both. The 0.5 size provides a very thin but legible line and the 0.7 is almost 50% wider but still provides a nice crisp line. The black ink is very black which stands out on almost any color paper you might be using. I've had no leaks with these despite both pens getting submerged several times. A good choice and a good performer.

Actually writes super well. Will be restocking with these in the future. Currently using them with the BigIDesign mini bolt pen.

Can’t say anything wrong about it. Just make sure you buy the right refills for the right pens.

all I can say I will buy again

I thought I'd try a new brand because of the great reviews elsewhere, but I've only written maybe 30 pages of class notes with this refill, and it's already either empty or gone dry. It worked last night and now I can't get a single clean line out of it.I recommend Zebra ink.

expensive for refills---but works great

Probably my new favorite d1 refil, very smooth.