Genuine 30766 VacMaster 3-Mil 6 Inch by 7 Inch Chamber Vacuum Packaging Pouches Includes: 1000, 6 inch by 7 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