Unibene Gel Ink Rollerball Refills 12 Pack, 0.5mm Fine Point - Blue, Standard Rolling Ball Refills Fit Most Ordinary Rollerball Pen, Waterman Pilot Pentel Compatible Cartridges

I was given a waterman pen for my birthday and loved the pen. What I didn't like the cost for refills which didn't work with generic ink I previously used with my other ball point pen. I did some research and based on reviews, this came up. I've replaced my pen with this ink and it writes as good as the original for a fraction of the cost of authentic ones. I recommend if you have a waterman pen and need blue/black replacement ink. So fat so good.

I've used 3 of these so far, out of a pack of 12. The performance has been consistent between all three. The gel ink flows well and has a nice consistency and color. The down side is the rollerball tip, at least in the "fine" size that I tried. It's very scratchy and rough, and that's been true with all 3 that I've used. Noticeably more so than other fine rollerball refills I've tried (e.g., Schmidt, Waterman, Pilot, etc.). Overall, however, I think these refills are still a very good value for the price.

WAS GLAD TO SEE THESE REFILLS FIT MY PENS TO A TEE. I HAVE SEVERAL MICRO CERAMIC PENS THAT I HAVE NOT BEEN ABLE TO USE FOR YEARS. THEY WHERE MY FAVORITE.. THE PRICE WAS GREAT. SMOOTH WRITING TIPS.WAS GLAD I COULD GET BOTH THE BLACK, AND BLUE AND ALSO AVAILABLE IN A MIX PACKAGE OF BOTH. I USED THE .5/FINE TIPS THE LENGTH OF THE REFILLS WAS ALSO PERFECT FOR THE PEN SIZE. GLAD I WAS ALBE TO FIND THESE THOUGH THROUGH AMAZON.

Good fit into my Lamy. After using them now for 2 weeks I have to change to another product. Reason: grainy feeling while writing, the tip accumulates black slime which eventually sticks onto the paper. Ink is bleeding through the paper. If you just use it for short text (2 to 3 words) or for "ticks in the box" it an okay product. For longer text and good feel I cannot recommend them at all.

They will not work in my pen. The refills are not threaded as shown in the photo on Amazon. I am trying to figure out how to return them now. Very disappointed. Instead of being threaded, they have a triangular configuration that do not fit the Meisterstuck. If you look at the photo on Amazon, it clearly shows the cartridges advertised as being threaded to fit the Meisterstuck. Very disappointed. Do you offer a refill for the Meisterstuck and how do I return these for a refund or for refills to fit my pen? I had to order original Mont Blanc refills from Amazon. Please advise. Thanks, Curtis Cox.

I have lots of left over promotional roller ball pens from when I travelled in sales. The problem is, the refils in them NEVER worked well, even new. They were freebies so I didn't expect more. Several of the pens are really nice so I tried these. They fit perfectly and write ALL the time. I wish I'd found them sooner. Highly recommended and I would buy again if I ever manage to use up the ones i have!

I was afraid that it wouldn't fit my pen. But after comparing the old ink cartridge with this brand, I decided to take a chance. It fits perfectly! It's not quite as smooth writing as the old ink cartridge, but it works and the fine tip is just the ticket. For the price point, I can't complain.

This fit in my Waterman rollerball pen with no problem. It is about 1mm longer than the standard Waterman refill. It is also slightly narrower where it exits the pen case. It gives it slightly more play than the standard refill. But I did not find it a problem or annoying. The picture on the left (where the barrel is touching the edge of the picture) is the Unibene refill and the picture on the right is the Waterman refill.