1. Reliable Packaging: Crafted with a durable and seamless design, these cooling packs are made from thick PE material. This ensures leak-proof durability and easy cleaning for consistent performance. 2. Efficient Temperature Control: Utilizing coarse dry ice pellets, these cooling packs maintain cold temperatures effectively and are suitable for large coolers, providing reliable cooling efficiency throughout use. 3. Easy to Use: The cooling packs freeze within two to four hours and expand as they cool, making it simple to maintain colder temperatures in lunch bags without complications. 4. Thoughtful Gift: This set of reusable cooling packs requires self-activating hydration and is designed to enhance cooler performance. They offer an ultra-long cooling retention, reducing the need for frequent replacements. Use Scenarios: - Perfect for family picnics, ensuring that food and beverages remain fresh and cool throughout the day. - Ideal for outdoor sports events, keeping athletes hydrated with cold drinks when it matters most. - A practical solution for work lunches, maintaining optimal temperatures for perishable items during commuting. These cooling packs stand out due to their robust construction, efficient temperature retention, and user-friendly design, making them an essential addition to any cooling system.