Uncategorized · fountain pen
TWSBI ECO Fountain Pen - Black Marble with Bronze Trim
TWSBI · sold by Yoseka Stationery · $59.00 · in stock

The ECO is the most affordable model yet from TWSBI. This pen features a piston mechanism, a clear barrel, clear cap and piston knob. The nib is smooth with a little feedback. The barrel is clear and smooth, which has lesser grip than a typical pen. Overall, it feels great holding in hand. Body Color: Black w/ Bronze Trim Body Material: Resin Cap Type: Screw-cap Compatible inks & refills: Bottled inks Ink not included with pen Filling Mechanism: Piston Nib Material: Steel Diameter: 0.5" Length: 5.2" Max Ink Capacity: 1.76ml Release Date: February 6, 2026 View all TWSBI products About TWSBI:…
| Option | Price | Stock | |
|---|---|---|---|
| Extra Fine | $59.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| Fine | $59.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| Medium | $59.00 | out of stock | |
| Broad | $59.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| 1.1 Stub | $59.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
Prices and stock from yosekastationery.com’s public catalog, last checked 2026-11-02 18:39 UTC. “Order via Kaupia” shows the delivered price to your zip (item + the store’s shipping + est. tax) and places the order through Kaupia with a delivery guarantee; “Buy at the store” goes to the store’s own checkout. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:991116a2-dc41-44f9-bbca-a485d4576d2d; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.