I’ve ordered two of the black refills but received two blue ones instead. However, blue is my preference so it was a happy accident. It writes really well and doesn’t leave any blotches.

Wrong size. I wanted refills for my pico pen.

Wife bought this pen a few years ago and it’s in my top 3 favorite possessions . Silly to include a pen, but you haven’t used this one yet! Ink lasted about 4 years with regular use.

Might be better than the original. Has a more durable point that seems to write more precisely.

They were given with the machined pens as Xmas presents. Everyone liked theirs and I got one myself. Made lanyards from color matching tactical cord with "s" hooks and then they'll be easily found.