These freezer packs are simple to use, just place them in the freezer until fully chilled, then insert them into your cooler or air conditioner. They help maintain optimal temperatures for food, beverages, or even during hot weather. Their versatility makes them suitable for home, office, or outdoor applications. Features -Color:Blue -Material:PE -Size:11.70X4.10X3.10cm/4.60X1.61X1.22in(S) -Size:12.40X7.80X2.40cm/4.87X3.07X0.94in(M) -Note:This product needs to be filled with water for use -Instant cooling solution: quickly lowers temperatures to enhance the cooling effect of air conditioners and portable fans -Cold chain efficiency: ensures temperature stability for sensitive items during shipping, preserving their quality and integrity -Outdoor cooling: ice packs provide a portable cooling option for outdoor activities, keeping you comfortable in warm weather -Longterm durability: the ice packs built to withstand repeated freezing, maintaining consistent cooling performance over time -Travelfriendly size: compact and lightweight designed cooler ice packs make it easy to pack and carry, good for cooling needs Package list: 24 x cooler ice packs