Schmidt 5 Pack 635 Mini D1 Refills - Red

These are red ink and perfect for pens needing this size replacements. They are specific in size to fit and write very well.

I use these refills for work and everyday use.

I haven't tried the blue yet, but both the red and black colors are bold and don't skip once I've gotten the flow going. As with many ballpoints, there's a slight drag at first, especially if the pen hasn't been used in roughly two days, but neither color falters once I've started writing. These refills even do reasonably well on Post-IT notes, though I still prefer the pencil mode for those. Finally, what I really like about these refills is that they really seem universal - I've tried them in a Cross Tech 3, TWSBI Tri-Tech, Platinum MWB-500RS, and Zebra Sharbo X with no issues of fit ... neither too tight nor too loose.

Works for my Rotting pen. Thank You

These were a gift to a friend who could not find refills.

The item arrived on time and has worked well so far.

The refills are smoother than I expect. The color is solid. There is no ink residue built up on the tip.

write well, exactly what I wanted

Excellent refills.