The Calphalon Unison Sear Nonstick Wok is a restaurant quality wok with a flat bottom and a nonstick surface for professional tasting meals and easy clean-up. The three layers of heavy-duty hard-anodized aluminum makes for evenly cooked meals and perfect heat conduction. The wok is extremely durable, the exterior will never peel, chip, scratch or stain. The handles are triple riveted and stay cook while cooking for easy transfer and stirring. It can even go in the oven. The Calphalon Unison Nonstick Wok allows you to make restaurant style and quality meals right in your own home.