7 layers for extra resistance. Triple Natura Elea non-stick natural coating. Without PFOA, cadmium-free, lead-free Die cast aluminum. Heat resistant external coating. Double flow port. Deep pans for efficient and fast cooking. Bakelite handle with wooden soft touch, for comfortable cooking. Induction base specially designed for uniform temperature diffusion and better application on the hobs. Suitable for all hobs: electrical, ceramic, gas and induction hobs. Dishwasher safe. 20cm Diameter.