This is a perforated type of Genghis Khan (Mongolian barbecue) grill. It's made of brass. I bought it during a trip to Korea and used it for charcoal grilling with a shichirin (Japanese charcoal grill). It seems to be used at the charcoal yakiniku restaurant Tougarashi in Nishi-Azabu. Weight: 1.64kg, Diameter: 29.5cm (including handles 33.7cm), Height: approximately 5cm.