Pen Spare Parts

Replacement caps for your favourite fountain pen. Select the correct model as the cap fit is specific for each model.  

Replacement TWSBI Fountain Pen Wrench - Metal for disassembling and reassembling your Twsbi piston filling fountain pen. This is the same wrench th...

This is the red plastic wrench that is compatible with the TWSBI Eco Fountain Pen. It is usually supplied in the pen box with all new Twsbi Eco pen...

This is a replacement O ring for the OPUS 88 nib unit that creates the seal between the nib unit and the ink chamber.Approximately 6mm diametre.