TWSBI Eco Fountain Pen - Cosmos Blue with Onyx Trim and Nib
The 2025 Limited Edition TWSBI Eco Cosmos Blue with onyx coloured trim and nib.
Uncapping Cosmos feels like unlocking a mini universe, where every line you write suddenly carries more possibility. It’s more than a pen; it’s permission to trust your ideas, even the big ones.
We recommend pairing with sky blue Pilot Ama-iro or a Herbin or De Atramentis shimmer ink.
TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling system, TWSBI has been able to create a fountain pen with very high ink capacity. What this means is that you no longer need ink cartridges or a converter...just fill this high capacity fountain pen and away you go.
Why use this pen? The nibs are fantastic, the styling amazing, you will be asked about it everywhere you go, and with it's big ink capacity it is perfect for urban sketching.
All parts are detachable for cleaning. Packaged in a gift box with spanner and grease for mechanism.
Specifications:
Mechanism - Piston
Colour - Mixed blue resin with onyx coloured trim (including the nib)
Nib sizes available - EF, F, M, B, 1.1 italic (stub/calligraphy)
