- Practical Packaging: This set includes six ice blocks, tailored to meet your cooling needs for everyday use or special occasions. - Durable Material: Made from robust PE material, these cooling packs are designed for repeated use without losing their cooling efficiency. - Easy to Use: Simply fill the ice crystal box with water up to the fill line (do not overfill), wait three minutes, and then place it in the freezer. After 3-6 hours of freezing, the ice pack transforms into a large ice block. - Efficient Cooling: The water-filled ice crystal box provides effective cooling and long-term preservation, making it ideal for outdoor gatherings, daily fruit storage, seafood preservation, and various other occasions. - Versatile Applications: Perfect for picnics, barbecues, or simply keeping your groceries fresh during transport. Use them to chill drinks or preserve food items in your cooler. - Size and Compatibility: Each ice block is designed to fit easily in most coolers, lunch bags, and storage containers, ensuring compatibility with your everyday essentials. - Performance: Enjoy reliable cooling performance that lasts, thanks to the high-quality construction and thoughtful design of these ice packs.