30cm 2 layered Whitford, non-stick interior coating. Coated inside and out to provide a robust sealed coating for long-lasting endurance. 1.8mm gauge carbon steel construction offers great heat conduction. Ideal for high heat, high speed cooking Bakelite handle. Flat base ensures the wok is well-balanced Heat sources: gas, electric, ceramic & halogen and induction safe Body thickness: 1.8mm. Bottom thickness: 2.5mm