Corningware French White cookware. Durable stoneware material designed for use in oven, microwave, refrigerator, and freezer. Material resists chipping and cracking. Nonporous surface does not absorb food odors, flavors, or stains. Glass lids make cooking, serving, and storing easy and convenient. classic, fluted design, oven-to-table bakeware imparts a traditional elegance that is a perfect compliment to any decor. Includes glass cover. Limited 1 year warranty on CorningWare . Limited 2 year warranty on Pyrex glass covers.