These are some of the best Mylar Bags that money can buy. Now is not the time to be cheap with your long term food storage solutions. Act now to be as prepared as possible. 7.0 Mil is the thickest Mylar bags you will find on amazon, and maybe even anywhere else for that matter. In today"s world of financial instability, food shortages, possible inflation and rising commodity prices Long Term Food Storage must be considered by any prudent individual or family. Mylar bags, when combined with oxygen absorbers and buckets are considered the best way to store large quantities of food for 20 - 30 years. These Mylar bags block sunlight and provide an additional oxygen and moisture barrier. To seal Mylar bags simply take a hot iron and iron the opening shut. These Bags are perfect for storing smaller quantities of food. Add: In order to pass savings onto customers these bags may or may not come folded or rolled, depending on your order qty.