Boil-In Vacuum Sealer Bags, 12" x 16", total thickness 4.0 ml, in-chamber vacuum pack bags (pack of 100) fits 40831 & 40833 machines, designed for Sous Vide cooking, maximum cooking temperature 212°F (100°C), (pack of 100) Made in USA (Refer to vollrathfoodservice.com for full warranty policy)