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

Great item, works 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.

perfect fit great buy

So pleased to get these as my daughter bought me the pen a few years ago and this is the first refill I have needed.

Didn't fit any of my rollerball pens. Very scratchy when writing, not at all smooth. Had to work at freeing off the balls on all six refills to even get them to work. Very poor quality, I wouldn't buy them again or recommend them to anyone.

The head on the ball point is not smooth - it works okay but it feels metallic when using. But they work

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.

No problems as it should be