Pilot Hi-Tec-C Coleto Gel Ink Pen Refill 0.5mm, 5 Set Black (Japan Import)

These are my favorite for multi-colored pen as an RN. They write very smoothly, can be ordered in various thicknesses (I like very thin), smudge very little, and are vibrant colors so even light colors show well. The black has a rich black color, but still very thin. I just wish the refills held more ink.

I love these multi-pen refills! Makes my life easier at work! Smooth writing, no skipping.

Refills times 5. Easy to load black ink

Someone will buy these for this reason: you can cut them down to size to fit inside the older version of the Muji gel ink pen. However, the long black piece of plastic shows through a little from the translucent Muji pen body. Nonetheless, these are confirmed to work for that purpose.

Let's face 7$ for a real porcelain roller ball pen? IDK but I seem to score with Prime, every time. It's bold but in no way obnoxious, It writes smooth, no ink splots if you hesitate, like if sketching.... worked great, I usually use fountain pens, but I'm growing tired of refilling them, or keeping the tip moist while sketching. Even formal letters I find this more usefull.

These refills are by far my favorite refills as of yet! They are very black and don't bleed through the thinnest of my papers, which is rare among gel pens for me. Another reviewer did say that these use up quickly and YES, they do. I go through these so quickly that I have to make sure to keep a pretty large stock available at all times... I write pretty much every day with these refills and they probably last me about 2 weeks. Perhaps if you are planning on using these less frequently, they will obviously last you quite a bit longer.They don't smudge unless you rub the ink with something damp (duh), but that is typical for most gel inks.Overall I recommend these refills! I wish they could hold more ink, but that is a drawback of such a fine tip.

I am a huge fan of pilot hi-tec c coleto's!! I am an even bigger fan of bundle deals! So put those two together and I am one happy camper! I personally use my hi-tec c coleto for note taking in school, so as you can imagine, I burn through these black ink cartridges. These cartridges are excellent because they are kept fresh with a little red dot on the tip so that the ink doesn't dry out during transportation! I also feel that this nib allow the ink to flow more smoothly when you first start writing as it hasn't already previously flowed through the tip and allowed the tip to get gunked up during the shipping process. I will continue to buy these for as long as I am in school!

Excellent value: at $1.30 a refill these are among the cheapest I've found for Hi-Tec C Coleto refills. The black is opaque and flows wonderfully, a true joy to use. I wish there was a big more ink per refill, but this is as good a price as I've found.