Pack of 10 Fountain Pen Ink Converters for Jinhao, Baoer, Hero & More, Black

Includes 10 standard sized ink cartridges that fit Jinhao, Baoer, Hero, Duke, Fuliwen, and many other European and Chinese fountain pens that take a standard international size. 
  • Length is 2-5/8"
  • Ink converters allow quick and easy fountain pen ink refill when using bottled ink. 
  • Plunger mechanism draws bottled ink with an easy twist.
NOTE: The agitator inside the converter may be a small metal tube, or a plastic ball (Jinhao uses both during manufacturing - either one works equally well).