Efficiently keep your food or drinks cold with the Gander Mountain Perma-Chill Extreme Ice Refrigerator that only drops to 33.8°F, so it won't freeze. This refrigerator is powered by a non-toxic, biodegradable liquid that maintains food-safe temperatures longer than similar substitutes. Prepare for use by putting in freezer set at 0°F for 6-8 hours prior to use. For best results, use Perma-Chill Ice with chilled contents in a pre-cooled Perma-Chill Cooler. Dimensions: 7.5"L x 1.25"W x 9.5"H.