Triply means 3 layers of metal bounded together, 1st-food grade 18/8 stainless steel used in the inner surface for healthy cooking, it is the most superior stainless steel with the longest life | 2nd-encapsulated layer of aluminium right throughout the cookware including the bottom and the body, this helps in even heat distribution with less cooking time | 3rd -SS 430 magnetic stainless steel used as the 3rd layer, making cookware induction friendly, the cookware can also be used for conventional cooking | Free from any harmful chemical, Suitable for cooking on induction, Ceramic, Gas , Color: Silver, Material: Stainless Steel | Package Contents:- Casserole with Glass Lid (20 cm|2.8 Liter)|Casserole with Glass Lid (22 cm|3.6 Liter)|Casserole with Glass Lid (24 cm|4.7 Liter)