1、Resistance to freezing, can withstand the temperature change and hot 2、Refreshing keeping time, keep the smell, safety 3、Green environmental protection, you can cut off the mouth of the sealed bag, clean and reuse 4、Can be used for vacuum packaging, aseptic packaging 5、Grain bag is a side pressure lines, the other side of the slick professional vacuum bag, suitable for all vacuum chamber at home and abroad, the principle of automatic vacuum packaging machine Description: If you worry about the rest of the food will be wasted, you will have to worry about the metal will rust. Might as well try putting them in a vacuum. Stay refreshing. One side is slick, with fine grain. Advanced food grade packaging bag. Features: Resistance to freezing, can withstand the temperature change and hot. Refreshing keeping time, keep the smell, safety. Green environmental protection, you can cut off the mouth of the sealed bag, clean and reuse. Can be used for vacuum packaging, aseptic packaging. Grain bag is a side pressure lines, the other side of the slick professional vacuum bag, suitable for all vacuum chamber at home and abroad, the principle of automatic vacuum packaging machine. 4 sizes for your choice. Specifications: Condition: New Material: PA Color: Shown as picture Weight: Approx. 103~232g Package Includes: 1 x Food Storage Bag Note: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.