Vaccum Food Bag 1.Material:PA+PE 2.Size:Various size available: 15*25cm 20*30cm 26*28cm 27*35cm 30*45cm 3.Thickness:0.185mm 4.How can the food vacuum bags help you? 1)prevents freezer burn2)locks out air and moisture3) keeps food fresh up to 5 times longer4)seals in freshness5)preserves the taste and nutritional value of stored foods6)buy in bulk,saves time and money.7)re-heat individual servings in food vacuum bags8)keep camping gear and important items dry.9)plan ahead - pre-pack meals,marinate