Emerilware Stainless line by All Clad was designed in conjunction with Emeril Lagasse, the popular chef seen on Food Channel. This is a liner insert that is designed to fit in an Emerilware 3-quart saucepan or casserole pan. This allows efficient steaming of a variety of foods. Steaming vegetables, fish, and other foods is regarded as one of the best ways of preserving nutrition and taste. It's an excellent cookware accessory.