Parker QUINK Rollerball Pen Ink Refill, Medium, Black

Great quality

I have been looking for refills for my Parker pen for years. I didn’t realize that they had a fitting on the end of the cartridge that was removable. I ordered this and it came quickly and in brand new condition. I put it in the pen and it worked perfectly right away. The ink flow is on the thicker side for a medium flow pen. The writing quality and writing speed are superb. Definitely better for quicker writers.

An ordinary product— rollerball pen refills, but very promptly delivered. Also the it was not “over packaged”. Completely satisfied with LuPro service.

Great

Original Parker at reasonable price.

An absolute delight to write with, the Parker QUINK Rollerball Pen Ink Refill in Medium Black effortlessly glides across the page, producing crisp, consistent lines with every stroke. Its rich, deep black ink dries quickly, ensuring smudge-free writing, while its smooth flow enhances the writing experience. Compatible with various Parker rollerball pens, this refill is a testament to quality and reliability, earning a well-deserved five-star rating.

Works fine

As someone who’s relied on high-quality rollerball pens for decades in both executive and archival environments, I expect a certain level of performance and reliability from a brand like Parker. Unfortunately, these QUINK rollerball refills completely betray the legacy of their name. Within a few months of installation, I encountered multiple catastrophic failures: the ink reservoir pressurized or deteriorated, causing spontaneous overflow into the cap, nib, and ultimately into the pen body itself. The result? A pen that went from refined writing instrument to biohazard.The chemical composition of the ink appears to destabilize over time, perhaps due to poor sealing or aging stock. It breaks down in viscosity and begins to pool erratically—an issue compounded by what I suspect is inadequate pressure regulation in the refill’s internal structure. This isn’t a minor leak or a dried tip; it’s a full-blown ink purge. Removing the cap becomes a gamble—one that often ends with an inky eruption and an irreversibly stained leather blotter. The refill essentially becomes a grenade waiting for the next user.Cleaning the aftermath is a painstaking process. It took hours with cotton swabs, isopropyl alcohol, and ultrasonic agitation to remove the tar-like sludge from the inner feed of my pen—a pen that retails well north of $100. Worse, the ink had saturated hard-to-reach capillary channels, affecting flow and performance even after deep cleaning. The residue also transferred onto my fingers and paperwork during use, a completely unacceptable outcome for any setting, let alone a professional one.Whether this is a case of degraded shelf life or a design flaw in the refill itself, I can’t say. What I do know is that these refills should not be marketed for use in high-end pens. If Parker is distributing old or improperly stored stock, they’re damaging both pens and reputations. For now, I’ll be sourcing alternative refills and treating these QUINKs as a cautionary tale.