Save money, reduce frustration, and keep stuff cold longer. This amazing hot and cold pack features advanced technology that allows it to stay ice cold for days, and when it finally warms, there's absolutely no release of water. This means that food and beverages will stay fresh inside your cooler, and you never have to worry about saturated packages, gooey labels, or soggy bread. Simply get wet with water to activate the cells, then cool or warm as needed. When frozen solid it makes the perfect alternative to ice packs and regular ice, and it even gets cold enough to replace dry ice. When warmed, it can maintain the temperature for a long period so it's perfect for heat therapy to soothe sore muscles, or for keeping hot beverages and cooked food usable for longer. Each sheet is comprised of 24 individual cells so you can cut it to any size you need, and each portion you use can be reused over and over again. The flexible sheet can wrap around objects, or conform to unusually shaped containers, so it's fully adaptable to almost any situation. Once you're done with it, toss it back in the freezer to use again later. With enough inside, they will reduce power consumption and make your freezer work better.