Schneider Ink Cartridge, Standard Format, Ball Closure, Refill for Fountain and Cartridge Rollerball Pens, Blue Ink, Box of 6 Cartridges (6603)

Great ink cartridge! works like it should and came whole

Exactly as described, works great with my fountain pen and the price is right!

Beautiful Color and Flow. I use it in my Amazon 10 dollar fountain pens and it works beautifully

Not a fan but fair price for what you get. Not very pigmented

C+

Nice standard blue ink. Royal blue is also erasable if you have an eradicator.

People who use disposable ball point pens can not understand how someone can use the same fountain pen for over 40 years. Those who do use fountain pens will understand why finding quality cartridges is so important, and these are very well made cartridges with a quality ink.W.H. Smith a Stationary Retailer in the UK had their own brand of pens during the 1980's and 1990's called Messenger that were manufactured for them in Germany. I have a few of these pens that I use on a daily basis. I have found these cartridges to be identical to the original cartridges and that the blue ink has a nice shade to them. Blue without being too pale or too dark, just blue! The ink is not too wet and dries quickly and I have never had a problem with ink not flowing after replacing a cartridge. They cartridges fit snuggly with no leakage and a second cartridge fits in the pen barrel, the way the originals did, so I always have a replacement with me.

The ink cartridge seal is extremely weak. Amazon has attempted to ship these three times. In all cases, I received exploded cartridges! The ink cartridge is sealed with a small plastic ball inside. Apparently a change in pressure/temperature causes the plastic ball to be pushed out of the cartridge, causing ink to be spilled all over. I think these are shipped via air where they experience change in pressure/temperature in airplane cargo compartment. Do not buy, very likely you will get exploded cartridges and the mess that you have to deal with afterwards! Amazon has been very nice trying to ship them intact, but why Amazon uses much larger boxes for shipping such small items? This seems to be the usual Amazon practice. Such a waste of resources!