Tetra Module is composed of a physical construction, Tetra Module Maquette, and a digital image, Tetra Module Schema. The Schema was used as artwork for invitations at the time the work was exhibited, and this seemed to indicate what you would see at the show. When you got there you saw a solid, unpainted, timber model of the thing.
The Module is still an idea, the two works each representing separate aspects of it. The form itself is composed of four outer tetrahedrons each sharing sides with an internal tetrahedron.