Our heavy duty turkey brine bags are made of FDA and USDA approved material for use with food. They are a thick 4 mil that is 120% thicker than a standard zip top bag. Other great uses for our bags is when preparing large cuts of meat for grilling and smoking, but need a something to store in overnight. Measuring 20 inches by 24 inches these are large enough for a 25 pound turkey, 20 pound brisket, half dozen slabs of ribs, or transporting wild game from the field to the butcher. Each package comes with 2 bags. Simple to use steps for brining: 1-Have your turkey fully thawed 2-Mix up some Butcher BBQ Bird Booster Brine 3-Place the Turkey Brine Bag in a bucket or roasting pan 4-Place turkey and brine in the bag and close bag 5-Place in refrigeration for proper brining 6-Remove turkey to cook and dispose of bag and brine. Cleanup is fast and simple