All Clad cookware is in a class by itself. It is designed to last a lifetime and has a lifetime warranty. The Master Chef line has 3 bonded layers. An all 18/10 stainless steel cooking surface, a pure aluminum core for even heating, and a brushed aluminum alloy exterior. The layers extend up the sides for exceptional heating. The Master Chef line is not intended for the dishwasher. Features: * Brushed stainless steel stay cool handle * Handles are attached with stainless steel non corrosive rivets. * Hand wash to preserve the exteriors