Calphalon 8-Inch and 10-Inch Unison Glass Pot & Pan Lid Cover Combo 8-in. and 10-in. pot & pan lids made from tempered glass with stainless steel rim and handle Fits Calphalon Unison Nonstick pots and pans Oven safe to 450 degrees F Dishwasher safe. DO NOT use abrasive cleansers or cleaning pads as they will damage cookware Full lifetime warranty