LASTING COLD - Our durable ice packs for coolers and lunch boxes are colder than ice at 18° F (-8° C) to keep your favorite foods and soft drinks chilled for up to 48 hrs.EASY TO USE - Filling these thin reusable cooler packs is easy freezy! Simply, add water once using the included funnel, shake, screw cap on, & freeze until ready to use.STRONG - Robust and resilient, these cooler and lunch box ice packs are nylon-reinforced for seamless freezer-to-lunch bag trips.ALL PURPOSE - These medium-sized reusable ice packs are perfectly designed to keep food and drinks cold inside lunch bags, beach bags, picnic baskets, cooler containers and more!THOUGHTFUL GIFTS - If your loved one is an outdoorsy type, you’ll want them to have everything they need when they go off-grid. Our reusable ice packs for coolers are essential camping gifts for anyone planning a well-stocked getaway! Food Safe - 18 Degrees F. Originally designed to keep blood shipments cold, Cooler Shock has as much energy as a freezer. Designed to phase change (go from solid to liquid). At 18 ℉ or - 8 ℃ - This releases the largest amount of energy at freezer temperatures to get your food & beverages cold quickly. Cooler Shock makes things colder over time. CoolerShock formula is shipped dry. You add the water and screw the cap on or zip it and seal it. Pack turns to gel in 15 minutes. Lasts 24-48 hours under constant opening and closing of your cooler. Great for fishing, boating, parties and tailgating. Caution: items placed in direct contact may freeze. Good for 100’s of freeze cycles. Pack durability now includes a later of nylon Increasing durability 50% over any competing product. Our packs have the highest heat transfer rate due to our bag design. If you handle them with a bit of care and avoid tossing while frozen or long-term submersion, they will last for years. Track Page Views WithAuctiva's Counter