6 Pieces Universal Fountain Pen Ink Converter International Fountain Pen Ink Cartridge Converter Refillable Standard Ink Plunger Converter (Red)

Not as good as the original that shipped with the pen

They're lamy converters. At least the ones I got were. Assuming they're not counterfeit, they seem to work the exact same as the normal lamy converters, and you get 6 of then for what you would spend for 1. Good value for me. Two ways to go about using them, either like a piston fountain pen or dunk the cartridge in ink and use the piston, either way works and is fairly easy to do (just keep some paper towels or tissues handy, it does get messy) Exact size of lamy converter and works for the lamy pens, ink quality depends on what you're using, some is good some is horrible.

Great product for a great price. Very happy with my purchase.

This is just a Lamy converter clone. It works nearly as well as the real thing. The quality of the plastic is not as robust. The suction plunger is also less strong. Out of the 6 I received, 1 of them could not hold enough suction and the ink just came pouring out. The rest were fine. For $12 for 5, at $2.4 per converter, it's worth it. It is not universal.

As a newcomer to the world of fountain pens, I found using this to quite easy. My preference was to place the converter directly in the ink so as to get a better fill and I did not experience any leaking with careful handling. It popped right into my Lamy Sari without issue and works beautifully. Seeing that converters can retail for $2.00 to $3.00 a piece (depending on the company), a package of six for around $12.00 is reasonable value.