Size: 20cm. Carbone Plus pans are no-frills traditional iron pans, traditionally used in professional kitchens for sealing, frying and browning. The pans come with no finished coating and need to be sealed before use. They are able to withstand high temperatures and their heavy duty 2.5 - 3mm thick steel construction ensures they will not warp or buckle. These pans will last forever and like all plain iron pans the more you use them the better they get. These pans should be washed in warm water without detergent.