PERFECT GIFT PACK - 50 of each size bag designed for use with all Foodsaver type machines, this variety pack is great for the first time vacuum sealer user! Better inch-per-inch value than rolls AND easier to use. HEAVY DUTY - 4 mil bags block oxygen and moisture. Embossed air-removal channels increase suction for maximum freshness INCREASE STORAGE TIME AND NUTRITIONAL VALUE - 5-6 times longer freezer storage time, locking in freshness, flavor and nutritional value - no freezer burn! WORKS WITH ALL BRANDS OF VACUUM SEALER MACHINES - FoodVacBags can be used in any counter top vacuum sealer, like Cabela's, FoodsaverTM, Ziploc FDA APPROVED AND BPA FREE - Great for food storage PLUS collectibles, valuable documents, silver & electronics