The SPW Caballero RB to FP Conversion kit allows you to easily and quickly convert you roller ball pen to a fountain pen.   The Nib is not a full #6 nib but is wider than standard and is two-tone making for a very pleasing appearance.  The kit includes the cap extension trim ring to allow installation on any Ti Gold Caballero pen. The pictured Ink converter and ink cartridge are NOT included but sold separately

IMPORTANT NOTE:
 Some dis-assembly is required on pens that are completely assembled when the conversion is made.  You must dis-assemble the cap/clip assembly and install the cap extension trim ring then reassemble the cap/clip/ring assembly.  If you are starting from scratch just make sure to add the cap extension ring to the clip/cap/ring assembly before pressing it into the shorter tube. When converting a rollerball pen to a fountain pen retain the roller ball nib assembly, the roller ball spring and the rollerball refill

Chrome pictured, but you will receive Ti Gold.