Schmidt K5 Push In Deluxe Fountain Pen Ink Converter (Pack of 2)

I wanted a Schmidt K5 converter to be able to enjoy a wide variety of bottled inks on my vintage Diabolo de Cartier fountain pen. The converter fits perfectly and works accordingly. I even have an extra converter in case I need it and the price for the two-pack was very attractive too. I am very happy with my purchase.

A bit tight, but they fit the pens I needed them to fit. Seem to work fine. No leaks and draw up a good amount of ink. Nice to know some things actually work like they’re supposed to.WRITE ON!

Schmidt cartridge converters are produced for many pen manufacturers, and are provided with your new pen as Original Equipment Manufactured (OEM) parts/accessories. If your fountain pens takes Standard International Short Cartridges, and has room in the body for two cartridges, this cartridge converter will fit, and work flawlessly, in your fountain pen.Some manufacturers (Lamy, Pilot, Platinum, Sailor) have their own proprietary ink cartridges and converters. If your pen does NOT take Standard International Short Cartridges, AND/OR doesn't have room for two cartridges in the body of the pen, this cartridge converter will NOT work in your pen.

I purchased these converter to replace one in a Wordsworth & Black pen. I saw other reviewers mention that the fit was tight to very tight. Mine was tight to the point of not being able to press any harder. I was ready to give up and lose the cost of the converters as well as the use of the W&B pen. In desperation I decided to try installing it on a Jinhao pen, which always felt like it had a "robust" build quality and maybe a looser fit. It took a hard press but it connected. Then, I took the converter that had been on the Jinhao, (and hopefully broken-in a bit) and it too went on after a very firm push.Once everything was assembled, the converters worked perfectly. I will grade them 4-stars because they work well and don't leak. I'll hold one star back due to the extra effort needed though I can't really blame them for the fit issue. Hope this helps someone in the future.

Works great with the Amazon Basics Fountain pen. You have to press it in hard but once it's fitted it's very secure and well sealed. The overall quality of this converter is the best I gave seen on any standard international converter. It also holds a good volume of ink. It transformed my very basic, but very good performing, Amazon pen into a favorite EDC pen.

these are very high quality, fit most of my pens. I have some that need 1 3/4 inch long, still looking for them.

Worked great as a replacement for an ink cartridge.

I primarily use custom-made kitless fountain pens, and most of the ones the pen turners make near exclusively come with K5s, so I like to keep a backup supply on hand in case of disaster. These also fit perfectly with my BENU pens (which are my most used pens after my customs). They hold a good amount of ink and are easy to use. Best part: they can disassemble, so if ink ever sneaks up into the piston mechanism, I can easily take the converter apart and give everything a good clean.