This Fountain Pen Cleaning Kit will help you clean out the feed on your fountain pen when it's time to change ink or your pen just needs a cleaning. The kit includes two cleaning cartridges and a syringe to flush out the feed. Just attach the cleaning cartridge to your pen, fill the syringe with lukewarm water, and use it to flush it out the pen's feed until the water runs clear. Please note this kit is compatible with any pen that uses standard international size ink cartridges.