Reusable Fresh BagsSave Your Money and Save the Planet! Main Features: It is applicable to the preparation, storage and solidification of frozen food in the refrigerator or freezer. It can be directly placed for microwave heating. It can be used many times and is easy to clean, so you can stop using disposable fresh keeping bags. Leak proof and easy to seal: The upgraded double zipper seal ensures sealing and leak proof sealing, making the bag very suitable for storing