Double zipper, 1 gallon Ziploc storage bags 1.75 mil thickness. Sturdy, disposable, easy-to-open, easy-to-fill bags. Unique interlocking zipper seals securely; locks in freshness and protects foods from drying. Reclosable bags 4” X 6” or 6” X 9” with a zipper type seal that closes securely and is easy to open time after time. These bags are excellent for storing, displaying, protecting and shipping all types of product. Because they are made only with virgin resin, they meet FDA requirements for contact with food products.