Made of three-layer material: 18/10 stainless steel on the upper side + inner aluminum + 18% stainless steel on the lower side. Stainless steel handle. Diameter: 28 cm. Triply Natural Cooking is a non-stick frying pan. Free of PFOA and PTFE. BPA free. Suitable for all types of cookers including induction. Also suitable for ovens. The stainless steel provides strength and robustness, while the inner aluminum provides fast and uniform heat conductivity. It is designed for those who are looking for a greener and healthier alternative when it comes to cooking.