For long pens, such as:
Screw the piston up to suck up the inks easily.
*Not for "Sport series" and LILIPUT
Our standard converter that fits in all long fountain pens. Instead of two ink cartridges, the converter is used.
By turning the rear part of the piston converter, the piston is turned forward. Immerse in the ink glass and screw the piston up again, ink is sucked in. Filling several times in succession increases the filling quantity.