Schneider Topball 850 Refill in Euro-Format for Ink Roller Pen 0.5 mm Blue Pack of 10

I found them to work very well, and got them at a very good price. I have a vintage waterman set with a fountain pen and a ballpoint; I use blue ink for my fountain pen and this red refill for my ballpoint in my teaching work, would highly recommend! I'm still on my first refill with over 2 months of decent use.

These refils are high quality and write just as well as the old ones. I find them very useful to relpace any pens that previously had this ink in it. The pen flows nicely and writes very smoothly. I was worried about these being fake but actually they are originals. You can tell from the writing on the ink refil that is exactly the same as the original.

Correct size, does the job.

Bought these to replace some pen ink inserts which had gone dry. They weren't too expensive and they fitted precisely, so a win all round and I'm able to use the pen again, which is a plus.

Fitted my pen works well

Really good quality product. Delivery time was really fast and the overall service was excellent.

I received a pen as a gift a few years ago and only recently have started to use it. As it hadn't been used the original refill had dried out . It was good that I could find the refill type as I had not heard of them before and they were reasonably priced. the only thing that I have found is that they are a little "sctratchy" when first used but are fine after this initial use.

I got these for a pen that I had as a gift they are a direct replacement as they are the same as the original refill which I could not find available anywhere else. I have always loved the pen as it always wrote so silky smooth and when the refill ran out I was disappointed as I couldn't find another. These though are exactly the same and I now are back using one of my favourite pens.