Jaymo Replacement for Montblanc 105158 - Measures 4.44 in / 113 mm Long - Rollerball Pen Refill - 2 Black

This replaced the original Mont Blanc roller ball cartridge in my pen. I don't see any difference in the quality or smoothness and flow.

These refills seem like a good deal, until you use them. I put them in my Montblanc rollerball, and they work great the first 4-5 days. Then they become erratic, seemingly drying up, not writing consistently, and are useless. I know I've got the right size because I measured and checked twice, and compared to the original MB refill I had in my pen. That wrote beatifully for months. I'll buy those from now on.

I was a little leary buying a Mont Blanc gel refill that was not made by the company - mostly because of the concern that it would fit the pen. It fit perfectly, and writes extremely smooth gel ink. I definitely will order again!

I liked it fits my Mont Blanc pen and did not cost me a leg and an arm. The writing quality is poor.

Even though I use Notes a lot on my iPhone, I still write on paper a lot. It always bothers me that every two to three months, I have to buy another refill for my Montblanc. I searched Amazon and ended up with this refill. The price tag was great comparing to Montblanc's. So I decided to give it a try. I loved the feel of writing. It is very smooth. The only thing I didn't like if I have to choose is this refill sticks out about 1/32 to 1/16 inches longer than the original. Other than this, it is just a perfect alternative for people who write a lot like me. Highly recommend.

I might have gotten a bad batch but they skipped, very scratchy. I couldn't control the width of the line....sometimes fine, sometimes bold. Nothing like Monteverde refills.

Refills fits (screws in all the right places) perfectly in Montblanc rollerball pen. The tip protrudes a slight tad longer than a Montblanc refill, but does not take away from function or looks. Ink flows evenly and smoothly. Looking forward to experience how long ink will last during infrequent use (I tend to use my Montblanc ballpoint more vs. occasional use of the rollerball).

I bought a 2 pack and found these refills to be inadequate. Everytime I used my pen I got an inconsistent flow. Even though I don't write alot, I eventually found it so irksome that I would just use a different pen rather than deal with the flow issue. I gave up on them and purchased the Monteblanc brand replacements.

Not compatible with Mont Blanc

Mooie prijs, maar niet erg tevreden. De maat wijkt toch wel af: de punt steekt 2-3 mm verder uit een Montblanc Skywalker dan de originele vulling. Ook hapert de inkttoevoer regelmatig tijdens het schrijven.

Very pleased with quality. Will order again.

Leaves blobs of ink rendering it unuseful

Unfortunately this red ink refill stuck out way too much at the end of my Mont Blanc pen. Looks all wrong