Perfect for versatile applications, these cooling boxes are suitable for lunch bags, coolers, and cold storage containers. Their innovative ice allows consistent cooling, making them ideal for preserving perishable items, enhancing comfort during hot weather, or allowing safe transportation of temperature-sensitive goods. Features -Color:Blue -Material:PE -Size:16.00X4.00X4.00cm/6.29X1.57X1.57in -Advanced cooling technology: these ice packs utilize cooling materials to achieve rapid temperature reduction and maintain a consistent cold environment -Wide range of applications: ideal for cold chain transport, outdoor events, and storage, these cooler ice packs allow reliable cooling in various scenarios -Portable and convenient: designed for easy handling, these compact ice packs fit seamlessly into lunch boxes, coolers, and travel bags without taking up much space -Adjustable usage options: the fourpack design lets you use the ice packs for cooler individually or in combination, providing flexibility for different cooling needs -Reusable design: reusable and practical, these ice packs minimize waste and support practices in cold storage solution Package list: 4 x freezer packs