Cooler Shock Ice Packs Cooler 3 Reusable Long Lasting Cold Freezer Clear Large NEW IN Packaging LONG LASTING COOL - Keep your favorite snacks and soft drinks cold with these reusable ice packs for coolers, beach bags, and picnic baskets. Once frozen, they stay at 18º F for up to 24-48 hours. NON-HAZARDOUS - If you want a hassle-free alternative to dry ice, our reusable ice pack will do the trick. It's food safe, so you can have peace of mind whenever you put them in your lunch cooler. CHILL FOR TRAVEL - Call them the sidekick to every outdoor adventure because these thin cooler ice packs will ensure your food stays fresh when camping, hiking, or scouting for any traces of the Yeti. BREEZE TO FREEZE - Filling this large ice pack is easy freezy. Just add water to your lunch ice pack, secure with the screw cap, and place in the freezer. Our Cooler Shock formula takes care of the rest! COMPACT FIT - Each durable ice pack for cooler bags and large lunch boxes weighs in at 5 lbs when filled and can replace up to 7 lbs of ice. Great for sodas, beers, meats, fruits, and even breast milk.