This is a plastic food storage lid that can be placed directly over pots and pans to store food in the refrigerator. It eliminates the need to transfer leftovers to another container, reducing the amount of washing up. After use, it prevents food from drying out and can be stored compactly. When reheating, you can remove the lid and heat the food directly on the stovetop. It cannot be used with fire, IH cooktops, microwaves, ovens, or freezers. It is not dishwasher safe. It is new and unused, and has been stored in its original box. It will be wrapped in bubble wrap for shipping. Thank you for looking.