Outus 12 Pieces Pen Refills Black Ink 1.0mm Medium Point Metal Ballpoint Refill Smooth Writing Pen Refills Replacement Refills for Retractable Ballpoint Pen School Office Supplies (Black)

good value, fit all my pens, even the ones that are not parker have only use one so far and its still going ,writes well doesnt blob ,a good buy

These refills don't write! Steer well clear of these, they must be factory rejects as the ball doesn't work properly and leaves blank letters in you words. If you don't mind writing over everything you write then no problem! More crap products from Sc@m@son!

The pen that needed a replacement had lasted years. The first replacement cartridge I put in lasted two or three weeks!!Not impressed.

i used for refilling some pretty pens i didnt want to throw away.Refills fitted easily and pens back in use

For the price they write really well. No leakages so far. Can confirm longevity just yet as only had them a short time