Montblanc Rollerball Refills (M) Royal Blue 124504 – Quick-Drying Pen Refills for Montblanc Rollerball and Fineliner Pens – 2 x Dark Blue Pen Cartridges

They fit my Mont Blonc Mesermeister pin perfectly. It writes well and color is sharp.

It glides through paper with ease. Its performance is truly amazing.

My Montblanc pen is my favorite writing instrument. I use it all the time; it is very comfortable.

I really like writing in different colors. I tried to mix my fountain pen colors to come out like this color, but it never works. I'm so glad I found the color in ball point.

Perfect fit and same high quality. Only downside is that they have become quite pricey for a rollerball refill.

I love my pen and being able to get the refills is fabulous. They are a bit over priced though.

I got what I paid for and I’m happy

Why do I have such a ridiculously expensive pen? What is possibly wrong with a disposable pen? Why are the refills as pricey as they are...for a ball point pen? Sorry, "rollerball" pen...Why is the sky blue? Why is the refill not called midnight black?I have no idea...because it's MontBlanc?...99.9% of the time, it works like a plain old pen...so far, it doesn't leak, or blob, or smear.But Oh! that 0.1%...with my rollerball Montblanc refill, I write better - of course - but i also used the pen as a spear tip when i was lost in the Amazon, made a plumb bob for checking level at the Pyramids of Giza, re-enacted the Texaco-Pennzoil 'contract on a napkin' scenario, got the autograph of a guy who claimed to know the owner of a gas station where the neighbor of a B-list celebrity bought a box of tic-tacs (they could not recall the name of the celebrity)...but i guessed it was probably Kate Beckinsale's stunt double.I bought the black...and it wasn't blue...it was more melancholy I suppose. I don't know why. Guess that's why it's called Mystery Black.