5 Gallon HD Ziplock Mylar bags with 2000cc Oxygen Absorbers Individually Sealed (12) with PackFreshUSA LTFS Guide Individual sealed 2000cc oxygen absorbers reduce exposure, waste and resealing Strong enough on their own or as a liner for 5 gallon buckets Not just thicker... a superior oxygen barrier Provides over 100 years of protection from oxidation, mold, and bugs FREE set of 500cc Oxygen Absorbers included for high-air products (like pasta, cereal,..)