Manufacturer – Catellani & Smith. Model – Lederam W

The diameter is 25cm.
LW 251 black / copper
LW 252 black / gold
LW 253 gold
LW 254 copper
LW 255 white / gold
LW 256 white / copper

Fully in the dimensions of the manufacturer.

A feature of the wall the ability to rotate one of the parts to create a variety of lighting effects.

The preview is done in Corona render 1.7.3.
Scene in the system units mm.
Includes formats: Max v-ray 20102016 Corona max 2012 2016 Obj 3ds.
The max 2010 file is compatible with vray 2.40.03.
In Obj 3ds you need to reassign the materials recreate the light sources.

Products webpage
https://www.catellanismith.com/en/lederam-w