●A kitchen poly-type freshness preserving bag with zeolite (mineral). It has acquired a "recommended product mark" for disaster preparedness products, etc. that are recognized as safety. ●Use to store vegetables and fruits in the refrigerator during power outages. ●Use for storing and transporting vegetables and fruits in case of disaster. ●As an auxiliary item for rolling stock. ●Resin Material: Polyethylene, Cold Resistant Temperature: -8°F (-30°C); Size: 9.8 x 13.8 inches (250 x 350 mm); Thickness: 0.000 inches (0.01 mm).