Smooth, with fine grain. Advanced food grade packaging bag, can be high temperatureClean and reusecan be used for vacuum packaging, packagingVacuum bag, suitable for all vacuum at home and abroad, the principlekeeping the weather fresh, keeping the smell,protection of the green environment, you can cut the mouth of the sealed bag,Color: whiteMaterial: PE+PAMetal . Could very well try to put them in a vacuum. Stay cool. One side isSize: 20 × 500CM / 8 × 197 inchGrain bag is a side pressure lines, the other side of the good Can also be used for other packaging products.2 x Roll Food Storage BagsResistance to freezing, can withstand the change of temperature and warm cut, easy to useSteam, can be placed in the microwave oven heating, suitable for the vacuum packaging of food,When in use, please do not put the sharp diamond items, avoid scratching the plastic wrapVacuum automatic vacuum packaging machine. (Not suitable for Gas Nozzle type of machine).