Features Superior, "rust-proof", food-grade Tri-Ply Stainless Steel. It comes with a glass lid Hawkins Tri-Ply Stainless Steel Cookware retains the advantages of cooking on stainless steel surfaces while eliminating the disadvantages of sticking and burning that come with normal stainless steel Hawkins Tri-Ply Stainless Steel Cookware is made of three layers The Cooking Surface is made of AISI 304, 18/8 food grade stainless steel that is extremely hygienic, durable and non-reactive to most foods. It does not pit or corrode The Core is made of heavy gauge aluminium which spreads heat evenly and prevents hot spots Product DescriptionHawkins Tri-ply Stainless Steel Deep-Fry Pan is designed to give you all the advantages of cooking in stainless steel while minimizing the disadvantages of sticking and burning that are normally associated with ordinary stainless steel. The cooking surface (inner surface) is made from 18/8 food-grade (AISI 304) stainless steel which is extremely hygienic, most durable, does not react with most foods and does not pit or corrode. The heavy gauge aluminium core spreads heat well for even cooking with no hot spots, and retains heat for quick cooking. It is sandwiched between two layers of stainless steel and does not come in contact with food on the cooking surface. The base (outer surface) is made of AISI 430 grade magnetic stainless steel. Hence this cookware can be used on all domestic gas, induction, electric, ceramic and halogen cooktops. The rounded curved sides and extra height are most suitable for deep-frying Puri, Samosa, Wada and stir-frying Stews, Curries and vegetables. The rim of the pan has an all around ezee-pour no-drip flange - specially designed to pour or slide foods without spilling - suitable for left or right handed use. The toughened, thick Glass Lid is made of heat-resistant glass with a strong stainless steel rim and stay-cool knob. It stops splatter of hot foods.