The set includes:
Table: Giorgetti Mogul 53100
Dimensions: 233x85x77

Sales page: https://www.giorgettimeda.com/en/products/tables-writingdesks-and-lowtables/mogul 

Chairs: Giorgetti Baron 53150 and 53160 (1)
Dimensions: 70x70x96 and 70x70x84

Sales page: https://www.giorgettimeda.com/en/products/chairs-and-small-armchairs/baron 

Table lamp: Giorgetti On / Off

Sales page: https://www.giorgettimeda.com/en/products/giorgetti-atmosphere/on-off 

A set of the office of Buvardo
Selling page: http://www.buvardo.ru 

Tablet: Microsoft Surface Pro 4

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General information about the models:
- Turbosmooth by a separate modifier
- Wooden furniture surfaces are made through Unwrap
- Models were created in "cm"
- For VRay versions below 3.0, check the contents of the GGX slot