Genuine VacMaster 40725 (10 Inch by 13 Inch) and 40728 (12 Inch by 14 Inch) 3-Mil Chamber Vacuum Pouches, 500 Pouches! Includes: 500 Bags, 250- 10" x 13" and 250- 12" x 14" Heavy-duty 3 mil thick, Nylon/Poly material Keeps food fresh up to 5x longer Can be frozen, refrigerated, microwaved, boiled and cooked sous vide BPA-Free and FDA approved; compatible with chamber vacuum sealers