It is Ø74cm H115cm.
We welcome this super light, and we welcome Terzani's new web site. The quickest way to see the lights that they do, and then to get images and info, is to click on any of the four quadrants (Precious, Design, Memory, New) and then click on the typology you want (Wall, Ceiling, Suspension, Floor) or All. Choose a light and then, besides images and a description, you can download a data sheet ("Product Catalogue") .
There are no downloadable 3D files, and passwords that worked on the old site do not work on the new one so, until they put this right, there are no downloadable installation instructions.