MonteverdeD1 Ballpoint Refill to Fit Mini and Multi Functional Pens, Medium Point, Soft Roll, 10 Per Pack (Bulk Packed) (Black)

Does your office manager insist everyone use black? Does your supervisor insist everyone use blue? Well folks here is one of the great inventions of our day: Monteverde Blue/Black is both Blue aaand Black AT THE SAME TIME! Through the magic of this single cartridge you can meet the needs (and undermine the autocracy) of both the manager and the supervisor. "Clearly it's darker than blue" you tell the manager. "Clearly it's lighter than black" you explain to the manager. Each will find joy in knowing they've one this part of the office battle. You'll be uplifted in knowing you put one over on both.Just hope they don't start talking again anytime soon.These are great cartridges for my multipens. Every now and again I come across someone who dislikes my writing in turquoise ink (also available on Amazon.com) so I must with over to this. Works well, nice and smooth with a consistent line weight.So I recommend this to anyone stuck in the blue vs. black battle. And if you are a multipen user like me try the turquoise, or the purple, or the ORANGE.

Beautiful flow, gorgeous depth of color, minimal ghosting on school style binder filler paper, and none at all on higher quality pages.I got the brown ink because it's easier on my eyes to read. It is a very dark brown, and could be mistaken for a red hue black. Just perfect for what i need.Added a comparison photo to show color.Edited: I've gone through 4 refills so far and averaged filling up 42 pages of a college ruled composition book per refill.

The writing is smooth and consistent. Not terribly bold but more than easy enough to read. Don't think I've had a single letter or line skipped even on paper with some gunk on it.

The teal is so pretty! Used it for 2 days and the pen went really light and stopped working. Didn't even write that much.

Perfect replacement for my yaya poquito mini pen

They arrived promptly and they write well.

Item was exactly what I needed.

Item works very well.

Exactly what I wanted, thank you!