Calphalon Unison Nonstick Flat Bottom Wok, 13-inch : Adapted from a traditional round-bottom wok, this flat-bottom wok has a wide cooking surface ideal for stir-frying on gas or electric ranges. The domed cover is perfect for steaming and simmering soups. The specially textured Sear Nonstick surface is ideal for: meat & vegetable stir-frying and tempura, steamed meats and vegetables, and soups. Product Features Sear Nonstick surface seals in flavor Cook with little or no oils, butter or fats Ergonomic handles stay comfortably cool on the stovetop Oven safe to 500 degrees 100% dishwasher safe Lifetime warranty