TWSBI - Eco Fountain Pen - Slate Blue with Onyx

Clear 'demonstrator' barrel reveals the filling mechanism, a built-in piston-filler with a very smooth action. Features Onyx trim and a serene Slate Blue on the cap and piston filling mechanism. TWSBI logo nicely finishes the top of the pen's cap. Rubber o-ring on cap thread ensures an airtight seal to prevent ink drying out in the pen, whilst also ensuring that the cap is firmly attached to the pen when not in use.

Faceted cap ensures pen will not roll away if left on a desk.

Polished onyx colored steel nib engraved with TWSBI logo and branding, available in a wide range of nib sizes.