These are some of the toughest, highest quality mylar bags on the planet. These mylar bags have been manufactured from the ground up with one purpose in mind: long-term food storage. These bags can easily accommodate a 2, 4.25, 5, or 6 gallon bucket. Mylar bags are used in food storage and have revolutionized the way that food is stored long-term. The main ways that food is affected by long-term storage is through heat, light, moisture, oxygen, and rodents. Mylar bags help in all areas of these, although they do not replace a proper food storage container like food grade storage buckets. However, when used in conjunction with oxygen absorbers and food grade storage buckets mylar bags provide numerous benefits to keep your food safe for many years to come.