Two layers 4 mil heavy-duty vacuum sealer bags roll with embossed air-removal channel which are stable for heat and cold, boilable, freezable, microwave and dishwasher machines. Perfect for Sous Vide cooking. Eliminating freezer burn and dehydration to keep your food fresher, juicy and flavorful. No pre-cut design, creating your own length of bag. Less food wasted, much money saved. Seal a meal bags rolls. 3-6 times longer food shelf life, lock freshness, flavor and nutrition inside. Work with all suction vac heat sealer, such as food saver. Textured on one side and crystal clear on the other for maximum air removal.