Converter for fountain pens
Instead of using traditional ink cartridges which are available at the ink category at mostwanted pens, you can use a converter for your fountain pen. A fountain pen converter is in simple words: just a cartridge, which is refillable.
In our fountain pen category you can find besides the cartrige and converter fountain pens also piston filling fountain pens, for example by the brand TWSBI. The whole piston fountain pen works like a big converter.