This is a "Cocotte Plate" cooking utensil for Rinnai gas ranges. It's a lidded cooking container that significantly reduces the amount of dirt in the grill. The direct flame reaches the food through the holes in the lid, allowing you to cook food that is juicy. It can be used for various dishes, not only grilled fish, but also non-fry cooking. Approximately Width 23 x Depth 31 cm It is a new, unused item, but it has been stored at home, so please understand this before purchasing. Thank you for looking.