At 7.5mils, these bags are nearly twice the thickness of an average Mylar bag, which typically runs 4.3mils, and are suitable for nearly any application. When sealed right, these bags are virtually impervious to moisture, oxygen exchange and other factors which tend to compromise the integrity of a product. Whether you are packaging food products, chemicals, machinery, or practically anything else, these are the bags for you! **No returns 14 days after purchase**
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