Black Standard Ink 6

Reasonably priced and works. Happy to have my old pen back.

I bought extra refills when I bought my pen.Great line width, smooth & bold writing.Love the refills.Only downside is I have to constantly guard my Bastion Ti pen...it keeps trying to " escape" in coworkers' pockets.

My pen had been run through the washer, so the original refill was destroyed. I needed new ones and these arrived fast. They also work perfectly.

Writes smoothly and they feel of good quality. Doesn't write as smooth as something like the BIC Atlantis. But it's still good enough

These are priced pretty reasonably compared to the competition for this type of ink cartridge. The ink is very nice and dark, and very smooth. These have been the best of this type (metal cartridge gel refills) that I have tried so far. Most of the others started off really nice, but after a week or 2 of use, the ink would become splotchy and occasionally stop flowing. These refills from Bastion have been very consistent after a month of use and are nothing short of excellent.That said, I still prefer the much cheaper (and dare I say, better) Pilot G2 refills, but not all pens can fit the Pilot refills. All-in-all, these perform very favorably to the Pilot G2 refills. Highly recommend, and will buy again.

Very smooth fix perfect in my favorite pen

Great item!

The gel inserts write very well, and are nice and smooth. However, they seem to run out of ink very quickly, and with metal casing, it’s impossible to tell what the ink level is as you go or if you are running out. Additionally, it seems to suffer from frequent difficulty in starting in flow, or even pausing and catching during writing. Overall, could definitely benefit from a redesign.