Large Standard Ink Cartridges Permanent Black

Excellent cartridges which always work.

Have used these for years. Good product!

These fit my lovely cartridge pen. I'm happy to write with high quality ink. Be sure to check your pen to be sure you get the correct size.

got this for a pen we ordered for our daughter after she graduated college. Daughter rejected the pen because it had signs of corrosion, so we never used the ink, but kept it anyway because we never returned the pen.

Like these for my refills, good price and look awesome

I only change on cartage and had to squeeze it to get it to work. I hope I don't have to do that every time I( need to change cartridge.

This is a very nice opaque black that works well on fine paper mnemosyne, clairfontaine, HP 32lb, etc. but not so well on regular copy or notebook paper. Even with a fine nib the ink bleeds through very quickly and feathers quite a lot. And to my surprise ink is not at all waterproof, even though it says permanent. Waterproof and permanent apparently not the same thing. Do not get your writing wet!

They are good!