Long-lasting cold storage：durable ice packs for coolers and lunch boxes, each ice pack measures 10x 9.05 inches, colder than 18°F (-6°C) ice, keeping your favorite foods and soft drinks cold Up to 24-48 hours ice cold longer SAFE: built to last ice packs are 100% BPA free and made of high-quality material PET outer layer + AL/PA inner layer, the best alternative to ice cubes, with cooler, faster and longer cooling effect, keeping food fresh built to last ：thickened ice pack are filled with a powerful cooling gel mixture that cools faster than ice cubes to keep cool, ice packs for large coolers and lunch boxes keep your drinks and food cool REUSABLE：Just use the included funnel to add water once, shake well, screw on the lid, and freeze until ready to use, after use, put the ice pack back in the refrigerator to cool repeatedly to prepare for the next use of the ice , it is a traditional ice pack great alternative to Suitable widely：Perfect for camping, picnic, boating, the party,fishing or any occasion where you need to keep food cool enough for you to have fun Reusable ice Packs for Coolers