made of flexible and heat resistant silicone that seals tight over all smooth-rimmed bowls and dishes. Just place a silicone lid over a bowl or pan and press down on the handle to create an airtight, watertight seal to store food cold in the refrigerator, or to reheat in the microwave or conventional oven. And unlike plastic wrap, these lids are beautiful and can be re-used over and over for the table, stovetop or in the oven up to 428°F. Dishwasher safe. Color might be different than the product images.