1.save 75% storage space. 2.Moisture-proof,mildew-proof for vaccum bag. 3. ... . 4.ISO Specifications Hand roll vacuum bags 1.save 75% storage space. 2.Moisture-proof,mildew-proof for vaccum bag. 3 ... ,bacteria,and odor .3.we use PA+PE,PET+PE material for zipper lock bags.4.OEM order is welcome.5 ... price to all of our customers. Hand roll vacuum bags Material PET+PE,PA+PE Size 50*70,70*90,80 ...