- High Capacity : Our freezer packs are designed with ample capacity, filled with dry ice crystals that enhance cold retention, ensuring long-lasting cooling performance for extended periods. - Durable Design : Constructed from thick PE material, these freezer packs are robust, leak-proof, and designed to save space while being easy to clean. - User-Friendly : Simply add water and avoid overfilling, then freeze for 2-4 hours. Once expanded, they are ready to be used in lunch bags and coolers. - Effective Cold Insulation : These cooler ice packs can be utilized with air conditioning fans to enhance cooling efficiency. They provide prolonged cooling and are reusable, making them a practical solution for various cooling needs. Applications : 1. Lunch Boxes : Keep your food fresh and chilled for picnics, school lunches, or work meals. 2. Coolers : Ideal for camping or road trips, ensuring your beverages and perishables stay cold. 3. Air Conditioning Support : Enhance the cooling capabilities of fans during hot weather for a more comfortable environment. Experience efficient cooling with these versatile and effective freezer packs.