Ink Feeds
Ink feeds are designed to feed ink from the inside of the pen to the nib, and then feed air back into the pen to replace the lost ink. Feeds are usually specific to a type of nib. The feed must fit the underside of the nib and not leak. These are also called "underfeeds".
We provide ink feeds for all the large flexible nibs we support in our Classic Fountain Pens, Classic Pump Pens and Piston Demo Fountain Pens.
You can slip our ink feeds in and out of the pen.