There are 26cm and 28cm iron frying pans that can be cooked in high heat at once. Lightweight with spin processing that gradually thins towards the edge! Rust resistant to nitriding Nitriding treatment: Nitriding treatment used to prevent rust on aircraft and automobile parts is adopted. It is less rusting and more resistant to friction. Strengthened by cross-cutting Compatible with all heat sources Country of origin: Japan Please note: Do not use a dishwasher Material/component: Main Unit /Iron (Nitriding Treatment) Handle /Natural Wood