Sailor's Hocoro line is a range of dip-style pens to allow you to write with many fountain pen inks at a go without the hassle of the usual flush and refill routine. Each time you want to change the ink colour you are using, just rinse the pen tip in water.
This reservoir unit is an add-on part for with use your Hocoro dip pen. It will allow you to extend your writing time in-between dips.
