Multifunction Tool Pen Ballpoint Pen Refills, Replaceable Refills for 6 in 1 & 7 in 1 Stylus Pen Ballpoint Pens - Black Ink (6pack)

These are not long lasting. I don’t write too much, used for writing lists or tasks BUT each refill has lasted less than a month. I hope the first 3 were just defects and I get longer life out of the rest.

If you have the Montverde ruler pen this is what you need.....very hard to find but did the trick.....

THEY WORK WELL AND LAST WELL

One of the pen refills was leaking ink. I cleaned it all up threw away the leaking refill. Kept the rest.

At least one of the refills was damaged upon receipt (lots of ink leaking in the package) but I REALLY wanted these so I chose to keep the shipment.

Fits as promised

Great product