Genuine 30723 VacMaster 3-Mil 8 Inch by 12 Inch Chamber Vacuum Packaging Pouches Includes: 1000, 8 inch by 12 inch pouches per box Heavy-duty 3 mil thick, Nylon/Poly material Use with Chamber Vacuum Sealers only! Pouches can be frozen, refrigerated, microwaved, boiled, or cooked sous vide BPA-Free and FDA approved