Water Injection Ice Pack 400ml/600ml/1000ml Food Medicine Seafood Cold Storage Bag is a high-quality and durable product manufactured by our factory. These ice packs are perfect for keeping your food, medicine, and seafood fresh and cold. The unique water injection feature ensures that the ice packs stay cold for a longer period of time, making them perfect for long journeys or outdoor activities. Our factory uses high-grade materials in the manufacturing process to ensure product durability and reliability. With different sizes to choose from, these cold storage bags are suitable for various purposes. Rest assured that you are purchasing a top-quality product made by a reputable factory.