CoZroom 20* 500 CM Vacuum Sealer Rolls Commercial Grade Food Saver Sealer Bags Pack of 2 It is food grade PE/PA composite membrane type deep embossed bag, Can see food that in the bag. Light penetration, pumping thoroughly, and good sealing. The temperature change resistance, high temperature cooking, low freezing, -25MPA compression test, toughness, can be used for many times Vacuum bag have achieved food grade SGS certification can be used for refrigerators, microwave heating, dishwasher cleaning, non-toxic and tasteless. It is a 5 meters long bag, width 20cm cut freely, your need to seal two crossing, suitable for family packing size of different food Vacuum preservation bags than the general of the box, clip line bag and other ways to keep food for a long time to maintain the fresh taste, color and nutrients.