Debuyer Inocuivre First Classe frying pan with a 2mm thick 90% copper 10% stainless steel laminated construction and cast iron handle. Copper is renowned for its conductivity giving a more even and responsive heat than any other material, whilst the stainless steel lining allows for easy cleaning, and gives a more robust, scratch resistant surface than the traditionally used tin. In two sizes, 22cm with a 20cm handle, or 26cm and a 23cm handle.