Made of high quality PE plastic,safe,reusable and durable. You can keep the zipper lock open to stuff it up effortlessly,and it has great performance to isolate all moisture from the outside when the zipper lock closed. These mason jar bottle pattern zipper bags are ideal for storing coffee beans,tea,candy,fruit snacks,seasonings,nuts,biscuits,pretzel rods,cereal,beef jerky and so on,which can store long term
