FRESHLOCK TurboSeal preserves the freshness, flavor, color and nutrients of food about twice as long as other storage methods. That is because it vacuum seals food air-tight in polyethylene plastic bags that are made to the exact size needed. Bagging material is microwave, freezer and boil-in-bag safe.Plus, FRESHLOCK TurboSeal will store and protect countless other household items. With so many ways to save with FRESHLOCK TurboSeal, it pays for itself over and over again!FRESHLOCK Turbo Seal is available with one 11-inch by 33-foot superior grade polyethylene roll included or in the Bonus Pack featuring four polyethylene rolls. An instructional video is included with both models.