5 Ply Copper Casserole With SS Lid is an ideal cookware piece that provides excellent heat conductivity and retention. The construction of 5-ply includes a layer of copper sandwiched between two layers of SS and two layers of aluminum, creating an even and consistent heat distribution. Also, it has a durable SS lid that seals in moisture and heat during cooking. The copper material not only provides tremendous heat conductivity but also adds a superb appeal to the cookware. 5 Ply Copper Casserole With SS Lid is suitable for all cooktops, comprising induction, and can be utilized in the oven for versatile cooking choices.