The Tetra Puzzle: Now available for pre-order

The Tetra Puzzle is a beautiful and captivating mechanical puzzle composed of four identical pieces of stainless steel. It's an immersive and mysterious challenge to understand and unlock. Available in Stainless Steel and Vapor Black.

Pre-order the Tetra Puzzle

Material Highlight: Carbon Black

We are here in celebration of stainless steel’s tough and protective older brother — the nitrocarburized finish that we affectionately call Carbon Black. What initially catches the eye as a matte black coating is the product of a fascinating scientific treatment called ferritic nitrocarburizing.

Discover Carbon Black