1. Cooling Performance: The thickened PE construction combined with powerful internal ice crystals ensures longlasting cold retention, maintaining consistent temperatures for hours during camping, fishing, travel, or daily use in hot environments. 2. MultiPurpose Cold Preservation: Designed to meet various cooling needs such as breastmilk storage, picnic freshness, food transportation, and air conditioning enhancement, making it an ideal solution for home, travel, and outdoor activities. 3. Reusable Quality DesignOnce filled with water, the ice crystal box forms powerful cooling crystals when frozen and can be reused indefinitely without refilling—unless damaged—offering both sustainability and convenience. 4. Compact and Portable Solution: The lightweight and spacesaving design fits easily into refrigerators, bags, portable coolers, or air conditioner fan compartments, making it for commuters, travelers, outdoor enthusiasts, or nursing mothers.