The product is vacuum sealer freezer bags rolls made of food grade PA+PE material, with a clear color and an item weight of 3.7 lbs., and it is hand-powered. It has a universal design that is compatible with all clamp style vacuum sealer machines. The bags are economical and precut, suitable for sous vide food storage. Made of food grade material, it is suitable for storing both raw and cooked foods, and it is safe for cooking, freezing, dishwasher, microwave, and boiling. The bags are designed with embossed channels that increase suction to vacuum and secure the seal. They can extend the shelf life of food by 3 to 6 times, maintaining the freshness, nutrition and flavor of the food, eliminating freezer burn and dehydration. The air and water proof material of the bags prevents leaking. The bags are heavy duty and designed with puncture prevention features: the front panel is 3.5 mil thick, the back panel is 8 mil thick with a textured or embossed surface to ensure maximum freshness, and they are equipped with bone guards to prevent piercing. Material: Polyethylene.