Link to the product on the manufacturer's website:
https://lavsit.ru/product/divan-marlo/?attribute_pa_marlo_size=345-x-155 

Stylish Marlo sofa on high metal legs.

Construction and materials:
Birch plywood frame, elastic straps, polyurethane foam of varying density, synthetic ball, synthetic padding. Legs - metal, black tint.
Upholstery material - optional.