(10) Mylar Bags 10- 20"x30" 5 Gallon Size 4.5 Mil for Long Term Emergency Food Storage Supply 10 count 20" x 30" (1 Gallon) 4.5 mil Thick Mylar Bag Industry standard setting 4.5 mil thick material - Don't settle for less for your food investment Can seal with a standard clothes iron or hair straightener - Can be resealed on any part of the bag Light, Moisture, Oxygen Barrier, and Puncture Resistant - use 2000-2500cc oxygen absorber capacity Ideal for long-term food storage of dehydrated grains and foods - Heat seal for long-term storage