SuperFlow ebonite feeder for Bock 060

SuperFlow ebonite feeder by FPnibs.

Fpnibs made from Japanese ebonite specially created for Bock 060 standard units. 

Bock 060 is also used by Kaweco for their pens with small nib: Sport, Collection, Student, Dia...

With 3 ink canals and a big air canal for maximum ink flow performance.

Great for flexible nibs.