Easy to use: These Fresh Keeping Bags can be stretched on any dish and plate, and they are reusable. When attached to the top of the container, they form an airtight seal that makes your food fresher and longer. It is the best choice for you to seal leftovers! Stretchable covers: Plastic wrap bowl covers provides great convenience since one size will fit many. The opening can be stretched up to 45cm. Quickly cover and store while being able to see what is under the covers Reusable And Clean: The food cover after use can be washed directly with water and can be used again after drying, which saves costs and is environmentally friendly. Properly Wrapped: The edge of each meticulously crafted transparent food cover is equipped with an elastic band with a suitable curvature, which can wrap the plate without excessive tension. Nice material: our food covers are made of plastic, non-toxic and reusable, suitable for your long-term use, with elastic bands, they can be stretched to proper sizes for you containers, which is very convenient.