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Group Buy · Concluded共同購入

A keyboard case
shaped from
a single stone.

The KOSANJI Case — a 65% exploration of marble as a mechanical keyboard case. Carrara White or India Green, shaped, polished and sealed in-house for a refined, desk-ready finish. Every piece, by nature, unrepeatable.

Group Buy Concluded VIEW SPECIFICATIONS
KOSANJI marble keyboard case
KOSANJI65 — Carrara WhiteNo. 001 / 100
着想Inspiration

There is something deeply considered in the Japanese approach to craft - treating tools with intention, allowing materials to guide the process, and accepting that refinement takes time.

Working with stone forced that mindset. It doesn't bend easily to direction. It reacts, resists, and asks for patience. Precision meets unpredictability — both the challenge and the appeal.

Christian · Kōbō Isshi
石の種類Stone Variants

Two stones. One form.

Each case is shaped in-house from a single block — natural variations in grain and veining making every KOSANJI case visually unique.

Carrara White slab

Carrara White

Quarried in the Carrara region of Tuscany, Italy, this marble has been used in sculpture and architecture for centuries. A clean white base with soft grey veining — refined, subtle, timeless.

India Green slab

India Green

Quarried in Rajasthan, India, India Green is known for its deep forest tones and layered mineral movement. Visually striking, but still balanced — a darker, more expressive take on the KOSANJI Case.

重要情報Key Information
CASE PRICE
$249
USD · either stone
Shipping
$50
From Thailand
Lead time
<90 days
From close of GB
Weight
~2.0 kg
Solid marble
日程Group Buy Timeline
01 Jul

Group Buy opens

Orders open for all 100 units.

01 Aug

Group Buy closes

Order window ends. Final counts locked; production scheduled.

Aug — Oct

Production · 90 days

Each case cut, shaped, polished, sealed by hand.

~ Late Oct

Shipped

Carefully packed and dispatched from Thailand.

工房一師

Group Buy concluded.

The KOSANJI65 Group Buy has concluded. Production is now underway for all confirmed orders.

Group Buy Concluded