This professional wok is made of carbon steel and has a diameter of 20 centimeters. The wok features a superior and ultra-hard Whitford Excalibur non-stick coating. The advantage of carbon steel is that it provides very fast and even heating and ensures that the wok will deform less quickly. The Whitford Excalibur coating has the properties of a perfect non-stick layer and is additionally very hard. This scratch-resistant wok is suitable for all heat sources, including induction cooktops.