Cut into most feeds are a series of channels or groves, resembling a comb. This increases the surface area and takes up any extra ink that would otherwise flood the pen. A reservoir is the area within the pen which holds the ink. A built-in piston is a device installed in the fountain pen to draw ink into the reservoir. A converter is a removable piston which is attached to the feed.
Pens using converters can also use disposable cartridges.
Back to the top Nib Comparisons Choosing the Right Fountain Pen Fountain pens are very personal items, so consider the following before making your purchase. However, if you have small hands, a wide barrel may feel awkward. Many of us like the initial feel of a heavy pen, but if you're planning to write for a prolonged period of time, that extra weight will cause fatigue on your hand and wrist. Try putting the cap on when writing. Nibs come in different widths, usually ranging from extra-fine to broad.