Parker QUINKflow Ballpoint Pen Ink Refill, Medium Tip, Black, 2 Pack

Writes great and last a long time

These parker pen refill work really well in my pen.

I bought the ballpoint refills thinking they would extend the life of my favorite parker pen, and was sadly disappointed that the refills were not nearly as good as the original. These gel refills were quite the opposite - smooth, clean, no bleed, drip, or goober. Exactly what I was wanting since I use my pen every day. The black color is dark and easy to see, no need to push down to aggressively so that it is visible - light and responsive application. Because it is Parker brand, it fits the pen perfectly - I would avoid buying the cheap knock offs here - just not worth it. How long it will last will depend on how often you use it, but I use my pen every day and only just today replaced it after buying these last year

As other reviewers have noted, this refill is prone to skipping. With this refill, paper quality matters.On regular notebook paper, it skips so much it's hardly worth using.On Clairefontaine paper, it skips once every other sentence or so.On Tomoe River paper, it's flawless and smooth with no bleed through.If you want a gel pen that just works regardless or paper quality and lasts, get a Pilot G2. Plenty of fancy metal pens on the market that will take the G2 refill.

Writes nice and smooth

Excellent refills. Ink is bright and drys very quickly.

These refills will fit the Beiluner rollerball (twist) pen

Cheap product from China. Barrel is now plastic rather than the original metal. The bottom section is a little fatter and now sticks when you attempt to retract the tip. You can work around the problem by pressing the tip onto a hard surface after you've clicked the retraction button. The refill does this in multiple Parker Jotter pens that I have. In one of the two cartridges, the ink stopped flowing smoothly after a few weeks and began 'dropping out' while I was writing. I ordered again, thinking it might have been a fluke. No joy. Both had the sticking issue and one of the refills never would write properly. Parker used to stand for quality. It's really sad how far they've let the quality drop.