This bag is made of aluminum foil, which is not easily damaged and can be reused. The front is transparent, you can see what the food in the bag is, which is convenient for you to choose the food. The concave-convex sealing strip can seal the mouth of the bag tightly, prevent moisture and air from entering the bag, and extend the food life. After the bottom is stretched out, it is about 4 inches wide and can stand on the table. It can be used to store candy, dried fruit, grain, cornflakes, snacks, etc.