Our two-tone #6 ultra flex nib units fit our FPR Darjeeling, Jaipur V2, and Triveni pens and 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. They are manually adjusted to produce a softer and more enjoyable flex experience.

Features:

• Feed material: Plastic
• Compatible pens: FPR Triveni, FPR Darjeeling, FPR Jaipur V2