Marspark 6 Pieces Universal Fountain Pen Ink Converter International Fountain Pen Ink Cartridge Converter (Red)

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.

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.

Great quality, size is perfect for my Lamy pen, very easy to use, the ink flows nicely, functions exactly as advertised, and is definitely a value for the money. If you have a Lamy fountain pen I can definitely recommend these converters.

Works Great with my lamy

Very nice.

If you dont want to pay crazy prices for the name brand converters, pick these up. I've had zero issues with them. Would buy again if I needed them!!

Good!

It works but doesn’t fit a Mont Blanc