- Durable PE Material: Constructed with thickened, high-quality PE, these ice packs offer exceptional sturdiness and a seamless assembly. The leak-proof design makes them easy to clean and reliable for repeated use. - Superior Cooling Performance: Filled with coarse dry ice pellets, these ice packs provide excellent energy storage and maintain cold temperatures for extended periods, making them ideal for larger coolers. - User-Friendly Application: Designed for convenience, these ice packs chill within two to four hours, expanding as they freeze. They effectively keep lunch bags and coolers at optimal temperatures with minimal effort required. - Self-Activating Design: These reusable ice packs require self-watering activation and come in a set to enhance the performance of your air cooler. They offer long-lasting cooling memory, reducing the need for frequent replacements. Use Scenarios: 1. Perfect for family picnics or camping trips, keeping food and beverages cold for hours. 2. Ideal for lunch bags or meal prep containers, ensuring your meals stay fresh and chilled throughout the day. 3. Suitable for use in coolers during sporting events or outdoor gatherings, providing reliable cooling to keep perishable items safe.