These 8-inch by 10-inch, 3-mil vacuum bags from VacMaster (model ary-30722) are puncture-resistant, transparent and ideal for vacuum packaging and sous vide cooking. Once food is sealed in one of these bags, the bag may be boiled (for as long as 20 minutes), microwaved or cooked in sous vide preparation. These pouches are especially designed to seal tightly in a chamber-style vacuum sealer (not recommended for external vacuum sealers. B.P.A.-free, F.D.A. approved, these pouches are nylon and polyethylene and will keep foods fresh much longer than other storage methods up to 5 times longer and they keep your foods from getting freezer burn. Package of 1000.