PRODUCT FEATURES Resealable ZipLock Seal The zipper mylar food storage bags can be used repeatedly with oxygen absorbers. Easy to Seal Heat seal with vacuum sealer, hair straightener or household iron when you need to store food for more long time. Possible to Stand Food storage bags are designed with sturdy gussets on the floor, which can be extended to stand upright. Food Grade Material Mylar Bag Zipper Bag is food grade safe and BPA-free. Made of PET, aluminum, and PE, food can be safely stored for a long time. Premium Oxygen Absorbers The oxygen absorber is composed of two types, 300cc and 500cc, so it can be used flexibly to fit the Mylar bag size and remove oxygen faster than before. Oxygen absorbers sealed in packs of 10 each can be stored and used efficiently by reducing product exposure and waste. 9.5 MIL Thick Layer With a total thickness of 9.5 Mils, it is thicker than other products, and has excellent durability and puncture resistance. It contains two types of oxygen absorbers, so it can be used according to the size of the Mylar bag.Oxygen absorbers are vacuum-packed 10 each to avoid exposure and waste, so they are effective for storage after use.