Uncategorized · fountain pen
TWSBI Kai Fountain Pen
TWSBI · sold by Yoseka Stationery · $130.00 · in stock
The TWSBI Kai is the third installment in the series of TWSBI's acrylic tortoise material pens that have a small ink window near the grip section, and are paired with a rose gold trim. Released in 2021 and earlier, the Draco and Aurora were the Kai's predecessor as a limited run piston filling fountain pen in TWSBI's limited "Classic" model. The Kai is fitted with a #5 size nib, the same nib used on TWSBI's Diamond 580. It comes with a benchmark piston ink-filling mechanism, and t he nib is smooth with a little feedback. The Kai fountain pen is only available in nib sizes EF, F, M, and B -…
| Option | Price | Stock | |
|---|---|---|---|
| Extra Fine | $130.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| Fine | $130.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| Medium | $130.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
| Broad | $130.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
Prices and stock from yosekastationery.com’s public catalog, last checked 2026-11-01 18:36 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:4fd7ed5c-6978-4ff0-9deb-a7ba76c7993c; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.