- Durable PE Material: Crafted with thickened PE material, these cooling packs feature robust construction and seamless design, ensuring they are leak-proof and easy to clean for long-lasting functionality. - Enhanced Cooling Performance: Filled with coarse dry ice pellets, these packs provide superior energy retention, maintaining low temperatures for extended periods, making them ideal for larger cooling needs. - Easy to Use: These cooling packs freeze in just 2 to 4 hours and expand when chilled, allowing you to effortlessly maintain cooler temperatures in lunch bags with minimal effort. - Perfect Gift: This set of 8 self-refrigerating, reusable cooling packs enhances the performance of coolers, offering extended cooling capacity for sustainable temperature regulation across multiple uses without degradation. Applications: 1. Outdoor Adventures: Perfect for camping, hiking, or picnics, ensuring your food and drinks stay cold throughout the day. 2. Work Lunches: Ideal for keeping lunches fresh in insulated bags during long work hours or commutes. 3. Transporting Groceries: Excellent for maintaining the right temperature for perishable items during grocery runs or deliveries.