Calphalon Simply Calphalon Nonstick Hard-Anodized Aluminum 4-Quart Covered Chef's Casserole 4-quart covered chefs casserole features hard-anodized aluminum construction with double nonstick interior coating Stainless-steel loop handles are riveted to stay cool and contoured for comfort Heavy-gauge stainless-steel lid Wash by hand; oven-safe to 450 degrees F 10-year warranty