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TWSBI Classic

TWSBI Classic fountain pen black
All about nib sizes
TWSBI Classic fountain pen burgundy
All about nib sizes
TWSBI Classic fountain pen sapphire
All about nib sizes
A slimmer fountain pen from TWSBI that shares many features from sister products the Diamond Mini and Diamond 580 fountain pens. Now with re-designed piston knob that allows the cap to be posted.

The TWSBI Classic fountain pen features a piston filing mechanism to provide large ink capacity and the solid colour barrel includes a transparent ink window so you can see at a glance when your pen is low on ink. Like other TWSBI fountain pens it is completely user serviceable and the gift box comes complete with wrench and silicone grease for servicing the piston mechanism (the tool is compatible with other TWSBI fountain pens).

The squared-off barrel profile prevents the pen from rolling when placed on a flat surface. The TWSBI Classic shares its Jowo nib with the TWSBI mini but uses a different nib/feed collar.