[High quality] Made of high quality PE plastic, 100% food safe and BPA free, can directly contact food, thickened material, tear and puncture resistant, and can withstand high and low temperatures, reusable [Double zipper] With double zipper design, can block 100% oxygen and moisture after sealed, keep fresh up to 5 -10 times longer; And can also easily store soup or other liquid juices etc, without any leakage [Easy to use] Widened bottom can increases the capacity, and allow to stand when the bag is full; The transparent bag allows to quickly see what's inside, and the surface can also be marked with storage date, item name etc [Size] 16CM x 14CM, 4 boxes of small ziplock bags, 30 pieces per box, a total of 120 pieces sandwich bags, sufficient quantity to meet different storage needs, ziplock is easy to open and seal, great for daily use [Applicable] Freezer bags can store different ingredients, such as: vegetables, sandwiches, meat, snacks, cookies, candies, fruits and soups, etc. They can also be used to store small items, toiletries or daily necessities when traveling