This All-Clad lid fits a variety of 12-inch cookware from the company's Stainless, LTD, and Master Chef 2 lines. It's made of polished, magnetic stainless steel that fits tightly over the pan's edges to keep essential flavors and nutrients from escaping. It also has a small handle riveted to the top for durability. Like all All-Clad cookware, this lid is dishwasher-safe.