economical: 3 food vacuum bag rolls: 28cmx500cm 25cmx500cm 20cmx500cm. Customize the length of the vacuum freezer bags to fit any food. Food vacuum bag 3 width options, reduce material waste and achieve greater value and can be reused after cleaning. Safe: Made from a durable and flexible BPA-free material, food vacuum bags are perfect for storing, freezing and boiling food. Suitable for freezers, refrigerators, microwave ovens and sous vide cookers. High quality food vacuum bag rolls can prevent punctures and tears and ensure the shelf life of food or items. Multifunctional: This food vacuum bag is compatible with all kinds of multi-brand vacuum machines. The texture of one side of the vacuum bag can increase the vacuum suction and ensure the freezing and vacuum cooking of food. Vacuum bags can also seal some items that need to be stored for a long time, and vacuum sealing can effectively prevent oxidation and weathering. Provide nutrition: Food vacuum bag rolls extend shelf life by 36 times, lock in freshness, nutrients and flavor. Food vacuum bags lock in oxygen and moisture, keep steak juicy and flavorful. It reduces grainy and fluffy fruits and vegetables. The vacuum bag will form an airtight barrier around the food to transfer heat while locking in nutrients and preserving taste. The vacuum bag can be used with a sous vide machine and a sous vide cooker. . If you have any questions about the sous vide bag or sous vide cooking, please do not hesitate to contact us.