1000×1000×300
450×450×510

V-Ray versions are 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"

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.

link:
https://www.aliexpress.us/item/3256808873147927.html?spm=a2g0o.imagesearchproductlist.main.5.171eHbyqHbyqTy&algo_pvid=22a67fa7-9662-48c2-a927-107f61554591&  algo_exp_id=22a67fa7-9662-48c2-a927-107f61554591&pdp_ext_f=%7B%22order%22%3A% 22-1%22%7D&pdp_npi=6%40dis%21USD%21890.41%21427.39%21%21%216323.97%213035.51%2 1%402167359d17569143245385391ebac7%2112000047762397053%21sea%21US%210%21ABX%2 11%210%21n_tag%3A-29910%3Bd%3A8efa5e6%3Bm03_new_user%3A-29895&curPageLogUid=zJ 3NH7THNiRB&utparam-url=scene%3Aimage_search%7Cquery_from%3Apc_web_image_search%7Cx_object_id%3A1005009059462679%7C_p_origin_prod%3A&gatewayAdapt=4itemAdapt