These dry-packs 1 gallon Mylar bags with moisture & static shielding and 300Cc oxygen absorbers are made from multiple Layers of Mylar and aluminum, making them both durable and secure for whatever items you might be shipping or storing. The flexible structure makes it easy to heat seal with hot iron, effectively blocking out moisture or any other damaging factors. Best of all, these bags are resalable after opening, allowing for repeated use, and the oxygen absorbers keep your goods free of contamination. . Whether you're storing metal or electronic equipment, pharmaceuticals, or food for long periods of time, These bags are perfect for keeping items in an airtight environment. With a low oxygen and moisture transmission rate as well as high light and puncture resistance coupled with the included oxygen absorbing packs, These bags are perfect for keeping your goods completely unaffected by any issues that may occur during long term storage. Our moisture and static shielding bags are the superior storage bags in the industry, and a perfect Anti-corrosion solution for food and metal items. Combine these bags with the included Oxy-Sorb 300Cc oxygen absorbing packets if you're storing dry foods or other goods for long periods of time and want to keep them free of mold or other contamination. Each packet covers a 1-Gallon space, making them the perfect match for these 1-gallon bags. Includes 60 bags and 60 Oxy-Sorb packets. Bag walls are 4. 75Mil thick. Outer dimensions measure 14. 00" X 10. 00". Inner dimensions measure 13. 50" X 9. 00". Each absorber measures 2. 95" X 2. 17" X 0. 11".