Genuine VacMaster 40721 (6 Inch by 12 Inch) and 40722 (8 Inch by 10 Inch) 3-Mil Vacuum Chamber Pouches, 1000 Pouches! Includes: 1000 Bags; 500- 6" x 12" and 500- 8" x 10" 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