Chair Oh:
485 x 615 x H 850 mm
https://designboom.ru/catalog/product/stul-oh-chair-chernyy/ 

Without Turbosmooth modifier:
Polys: 2,714
Verts: 2,738
With Turbosmooth modifier iterations 2:
Polys: 86,688
Verts: 43,522

The Turbosmooth modifier with Isoline Display has been applied to the necessary objects;
An FBX file is available (if necessary, apply the Turn To Poly modifier to the FBX file);
For Corona render, it is recommended to use version 1.5 or higher, as the glossiness of the materials is set with PBR in mind.