I prefer blue-black, ever since they taught us to write with cartridge pens in second grade

But I would describe it as a dark blue rather than blue-black

A nice dark black.

It's a nice, solid black and fails to disappoint

The ink flows very well and is a rich, dark black even after drying.

The ink itself is a deep and rich solid black which stands out boldly on the piece of paper

The ink flows very well and is a rich, dark black even after drying.

I just love the blue black

A nice dark black.

The ink color is very nice, blue-black is very classy in my opinion.

I have not been very disappointed in this ink -- It's just as fluid and solid as the black, but I didn't realize how bright it would be -- more sky blue than dark blue

3 stars because it arrived on time and is a nice black.

Doesn't come out as dark and thick as I expected - not nearly as nice as black and brown.

It's very dark, almost black

Good quality ink, nice dark black.

Ink is a good black like I wanted.

Just the right consistency and as black as it gets

Good quality ink, nice dark black.

These cartridges hold a lot of ink and the black is a very good black - I prefer the converter with Aurora, but for an on the go option these are great!

I definitely prefer the blue/black

A nice black for the Cavalier and needed no priming, so good flow

I prefer this black as it writes very smooth and has a bold look

Good ink as well, solid black and no real issues with bleeding or water

Arrived OK!They work as