This is a plastic lid that can be placed directly on pots and pans to store food in the refrigerator. It offers the convenience of saving you the trouble of transferring leftover food to another container, thus reducing the amount of washing up. After use, it prevents drying and can be stored compactly. When reheating, you can simply remove the lid and warm the food directly on the stove. Cannot be used on open flames, induction cooktops, microwaves, ovens, or in freezers. Not dishwasher safe. It has been stored in its box, unused and in new condition. It will be shipped wrapped in bubble wrap. Thank you for looking.