Long-lasting, Powerful Ice Packs for Coolers, Refillable, Thin, Small, and Sub-zero Temperatures, Maintains Temperatures Below -7.8°C for 8 Hours,

❄️[Powerful below-zero cold retention!] Simply freeze in the refrigerator for 8 hours or more and your drinks will stay cold for 8 hours! These long-lasting ice packs are perfect for storing drinks, lunch boxes, and more. They fit efficiently into the gaps in your cooler. Keeping drinks and food cold for hours is all you need. A must-have for the hottest summer days! ❄️[Available in two sizes] ●S Size: Set of 6: 18.5cm wide x 15.8cm deep. Fills 360ml. ●M Size: Set of 4: 24.6cm wide x 24.8cm deep. Fills 830ml. Includes a foldable funnel. ❄️[Reusable] The outer material is 100% BPA-free, so you can safely store them in the refrigerator, in a cooler backpack, or with food. There's no need to refill them after the second use; simply return them to the refrigerator after use. Even if the surface gets dirty, simply rinse with water and wipe it clean and it can be reused. ❄️[Highly efficient and revolutionary cooling solution for a variety of occasions] Compared to ice, less ApaLux ice pack is needed for the same cooling power, reducing the weight of the cooler box and improving space efficiency. It's also recommended for hiking, fishing, picnics, camping, shopping, travel, outdoor activities, and more. (We recommend increasing the amount of ice packs used depending on the amount of items.) Waiting time will be significantly reduced. ❄️[How to use] 1. Use the included funnel to pour the specified amount of water into the cooler bag. 2. Remove all air and then tightly close the lid. 3. Place in the freezer for at least 8 hours until completely frozen. Once frozen, it can be reused. It has a soft texture (it will harden when frozen).