Safe material: These reusable elastic sleeves are made of food-grade transparent and clean PE, safe to use, not easy to tear, and durable. Stretchable lid: The plastic packaging bowl lid provides great convenience for food preservation. The opening can be stretched up to 45 cm. Suitable for different food containers such as plates, bowls, basins, etc. with a diameter of 4in-11in (10cm-28cm). Quick cover: You can gently pull the food cover, cover it on the top of the plate, quickly cover and store it, and use it to keep fresh kitchen foods such as fruits, vegetables, and meat. Great for outings: when you are preparing for a picnic or outdoor family dinner, they can keep nasty bugs away from your food. After the party, they make cleaning and storage easy You can add them to your camping supplies. Wide range of applications: Not only can be used for refrigerator food preservation, in addition, you can also use them as shower caps or shoe covers.