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

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.

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

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!

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.

Excellent converter that has a spacious reservoir and fits my Visconti Eco-Logic. Very happy with this purchase.

It’s be even better if more product descriptions and usage applications are provided.

Thus far, seems to work well!

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.

Excellent quality. Clean fountain pen prior to adding converter. Fill converter and firmly push in with a slight rotating motion of the converter. It takes quite a bit of force. Very pleased with the German workmanship.

Perfect fit for Amazon basics pen. Never liked cartridges. This converter will give me more freedom to choose the ink color that I want. Fill it up and it will hold slightly more ink than the cartridge the pen came with. This is a screw type converter and not a plunger which I am not a fan of. One converter cost almost as much as the pen though, even when you buy them as a pair. Also remember this is just an ink container. Just by getting one of these, if you are looking to find a magical improvement in your pen, then this is not what you would want to buy. The performance of the pen depends on the nib quality, the ink delivery from the nib, the quality of the ink, the paper you are using and of course the way you write. Definitely satisfied.

Fast delivery.. Fit in my muji perfectly.. Thx seller

Works as expected

Bought it for my Pelikan Twist pen. Functioning is perfect.It's a little loose in the socket, but that's because Pelikan's "standard" refill size is a little wider than what other brands use. Still, perfectly usable.