Triply 3.5 mm Stainless Steel Tawa 26 cm, 3 mm Extra-Thick Stainless Steel Deep Kadhai 4 Ltr with Lid. 5 Year Guarantee. | Cooking Surface - Made from 18/8 food-grade (AISI 304) stainless steel of superior quality, the cooking surface is extremely hygienic , very durable, does not react with most foods, does not pit or corrode. | Core - The heavy gauge aluminium core spreads heat well for even cooking with no hot spots, and retains heat for quick cooking, batch after batch. It is sandwiched between two layers of stainless steel and does not come in contact with food on the cooking surface. | Base & Outer Surface - The base and outer surface is made of AISI 430 grade, magnetic stainless steel. The Cookware can hence be used on all domestic gas, induction, electric, ceramic and halogen cooktops.