Product Information: Quantities Available: 100, 200, 250, 500, 1000. Packaging Shack’s High Density and Extra Thick 500 Gauge (125 Micron) Polythene Bags are food grade Polythene Bags made from contaminant free Virgin Polythene that come in boxed dispensers for easy opening and storage. Manufactured from strong and durable polythene, that offers protection from dust, dirt and moisture. Can be used to freeze food. Please note that not all combinations of size and quantity are available.