TWSBI Eco Fountain Pen - Black Marble with Bronze Trim and Nib ***Pre-Orders open Wednesday 4th Feb***
The 2026 Limited Edition TWSBI Eco Black Marble with bronze coloured plated trim and nib. The global release is 6th February, and if you register your email below you will be notified when preorders open on the 4th February.
Uncapping Black Marble feels like unlocking geological treasure, 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 Pilot Take-Sumi for a mysterious black, Herbin Perle Noire (Black Pearl), Herbin Les Toits de Paris (Paris Grey Roof) or if you need permanence, De Atramentis Document Grey.
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 black resin with bronze coloured trim (including the nib)
Nib sizes available - EF, F, M, B, 1.1 italic (stub/calligraphy)
