4.37'' Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, German Ink Refill Pack of Replaceable Pen Refills Medium Point(6 Pack) (Black)

Nice to be able to get these refills at good prices and delivered next day. There are so many to choose from as well.

Thought I'd take a chance on these as I'd been struggling to find this type of refill locally. I feel that they're good value for money for what you get and the quality isn't too bad. The tips are a little scratchy when you're writing, but that was also the case with the official refill I originally had in my pen anyway. The ink is a nice shade of blue and overall I'm quite happy with them.

Had a green Boyicer pen from ages ago and the refil ran out. Struggled with lots of Parker and Cross refills, none of which fit properly. Took a punt on these and they're perfect. Cheap too! Very happy.

In fairness, there was no guarantee in the product description that these would definitely fit the mad yellow Lamy safari pen that I got on a whim. They do fit - pretty much - but it's a very, very scratchy experience.Maybe the first one out the packet was defective.The whole point of buying these was to save money right enough, so I'm not aboot to go and start testing another one. When the ink runs out, I'll return.;)

Worked perfectly and means I have my favourite pen back!

First thing I saw was the label on the box "Made in China". Sigh, I thought I was buying refills made in Germany. So wait, did they ship ink from Germany to the other side of the world, make refills, then send them back again? What a waste.Colour is pleasing, but as other reviews have noticed the pens are very scratchy. I have a pen made of glass to dip in an ink well that makes less noise than this rollerball. I also found it frequently decides not to actually write, forcing me to redo the odd letter here and there.Can't speak for longevity as I've only been using them to take notes for a week but while I'm happy to be using this particular pen again, I'm not impressed with these refills and wouldn't buy them again.

I recently moved from the US to the UK and noticed my pen was running out of ink. The ink well it came from was Peter Pauper, which I haven't been able to find replacements for that were affordable here. While searching for the pen size (0.5 MM) I found these and they fit perfectly into my pen, although the tip is a smidge longer than the old one. This doesn't hinder the writing ability and I'm super grateful I found these.

Have bought before and will again when the refills are required.