These (2) Corningware french white 2.75 Cup lids are best used with CorningWare petite casserole dish (Dish NOT included) . The user can count on this lid to make preparing, serving, storing, and reheating food more convenient and much less wasteful than plastic wrap or aluminum foil. This versatile lid is safe for use in the freezer, refrigerator, and microwave, and it cleans up easily on the top rack of the dishwasher. Made of non-porous, BPA-free plastic, this lid will not absorb food flavors, odors, or stains.