"18 Pcs, 6 Different Sizes: The silicone stretch lids come with 6 sizes (2.5"", 3.7"", 4.5"", 5.5"", 6.3"", 8.0"" diameter). They can expand to fit most bowls, pots, containers, mugs, cups, cans, jars. Do not waste time transferring foods to other containers.^ Premium Food Grade Material: Safe Food-Grade silicone, temperature resistance form 40 to 400. You can feel free to use them to cover most kinds of foods and put them in the refrigerator, microwave, and dishwasher as your needs.^ Fresh Keeper & Food Organizer: Silicone stretch lids are ideal to help for storing leftovers, unfinished drink, even Half-Cut melon, keeping watermelon fresh. Helpful to keep kinds of foods fresh, and prevent spilling and spattering.^ Save Spaces & Easy to Clean: Silicone stretch lids save more space in the refrigerator and store more food.The special silicone material make the lids easy to clean.^ Eco-friendly Silicone Stretch Lids: They are reusable, so they can reduce plastic waste and help you to save money. They are more Eco-Friendly and the excellent replacement for plastic wraps, baggies. It's time to say goodbye to the conventional plastic wrap.^"