[Safe Material] Classycoo food cover is made of food-grade transparent and clean PE, which is safe to use, not easy to tear and durable. 100 PCS storage bags are washable and reusable for long-term use. [Stretchable Design] With a unique elastic edge design, our fresh keeping bag is stretchable and can be adjusted to fit bowl up to 8 inches size. Compared with traditional food storage bags, they are faster to use and save your time and effort. [Easy to Use] This plastic sealing bag is suitable for various food containers, including bowls, cups, glassware, food cans and small pots. They can directly stretched so that when fixed on the top of the container, they form sealed environment keeps your food fresh. [Simple Placement] Put the container in the air or put it in the refrigerator together with the food to keep the food fresh; Do not put it in the oven, oven and microwave with the container for heating and keep it away from open flames. [Widely Use] The food storage covers well protect foods such as watermelon, lemon, onion and other fruits, vegetables and meat. They are suitable for parties, picnics, and barbecues. They are a perfect gift for family and friends.