Enjoy professional results with nonstick convenience with Calphalon Unison Nonstick cookware. The 13-in. Stir-Fry Pan has a specially textured Sear Nonstick surface that seals in flavor and is ideal for stir-frying proteins and vegetables, or making tempura. 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.