FPR has teamed up with Flexible Nib Factory to bring you #6 JoWo compatible nib units that are fitted FPR with ultra flex nibs and FNF ebonite feeds for maximum ink flow for flexing.  These units offer all the generous flow of an ebonite feed and will fit any #6 JoWo threaded pen including our ,  and fountain pens.

They write with an extra fine 0.4mm line on the thin end and 2.0mm fully flexed.  They are tipped with top quality German made material for a smooth writing experience and are manually adjusted to produce a softer and more enjoyable flex experience.

(Note: These units do not have JoWo nibs.  They are fitted with FPR nibs inside a housing that is threaded to fit pens that take #6 JoWo nib units.)

Features:

• Feed material: Ebonite
• Accepts standard international cartridges and converters.