Pilot CON 40 Piston Converter

It barely holds any ink and doesn’t fill to the top. It’s just fussy and a bit useless with the CON 70 and people filling the empty cartridges with a syringe.

Works as expected, not my favorite converter

There's nothing wrong with the product and it is a genuine Pilot CON 40 Piston Converter. This was my first Pilot CON 40 I've used before and I've learned that I'm not a big fan of how they function compared to other converters.

This converter is small

I am surprised that this converter is so small and light weighted. Not much ink can fill in it. But it works well with my Pilot metropolitan fountain pen. As for me, an ink cartridge is better than a converter, for the cartridge can easily be fitted.