The spring converter is compatible with fountain pens that use a 3.4mm converter such as Hongdian fountain pen by removing the syringe
Ideal for filling and cleaning fountain pen ink cartridges, converters, and bottle ink
Easy to fill Simply dip the chip in the bottled ink, press down the spring stick, release the stick and pull the ink into the converter
EASY ASSEMBLY: Filler comes with 3 parts (converter, white connector, needle) Simply attach the converter and needle to the correct end of the connector (see video for details). It is easy to roll up the cloth and add grease to the connector. You may need to push it a little hard when you first assemble it
