World Kitchen Pyrex Smart Essentials Mixing Bowl, 4-Quart (Pack of 2 Bowls) Pack of 2 Bowls, Each with red lid Smart Essentials 4qt.; Mixing Bowl with Red plastic cover Pyrex glass is safe in the oven, microwave, refrigerator, freezer and dishwasher Pyrex glass is non-porous, so it won't absorb food odors, food flavors or food stains Clear glass allows you to watch your food as it cooks, Limited 2-Year Warranty on Pyrex glassware