Product details100pcs/Lot Vacuum Sealer Piece Bags NO Portable Seng For Food Sealer Machine Kitchen Tool Food Fresh Sous Vide CookerVacuum preservation Enjoy the food!?Vacuuming removes some of the air from the container(O2)Prevent food and air contact, can effectively prevent food corruption, blocking the environment where bacteria breed.Better preservation of ingredients.?To extend the preservation?Insect-resistant moistureproof?Strong antioxidant?Prevents flavor croing?Material safety (PE & PA & PE) BPA FREE?Size:15*20cm,15*25cm,17*25cm,20*25cm,20*30cm,25*30cm,28*35cm,30*40cmPcking: 10pc