CEA bathroom accessories set
Toilet flush buttons:
https://www.ceadesign.it/en/products/1-bathroom/6-wc_plates/22-hydroplate/item/977-pul10 
https://www.ceadesign.it/en/products/1-bathroom/6-wc_plates/22-hydroplate/item/975-pul08 
Toilet paper holders:
https://www.ceadesign.it/en/products/1-bathroom/9-complements/26-giotto/item/1036-gio06 
https://www.ceadesign.it/en/products/1-bagno/9-complementi/26-giotto/item/1085-ste05 
https://www.ceadesign.it/en/products/1-bathroom/9-complements/29-stem/item/1091-por02 
Toilet brushes: https://www.ceadesign.it/en/products/1-bathroom/9-complements/35-toilet_brush_holders 
Towel holders:
https://www.ceadesign.it/en/products/1-bathroom/9-complements/29-stem/item/1060-ste03 
https://www.ceadesign.it/en/products/1-bathroom/9-complements/29-stem/item/1065-ste21 

Polys: 106 136
Verts: 108 259

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured taking into account PBR

Those who work in V-Ray versions lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR ( GGX ), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever suits you best