Igloo MaxCold Ice Gel Pack 6.8 oz. Blue 1 pk Plenty of cold without the mess. For busy days on the move, toss the reusable, non-toxic Igloo Ice Block in your lunch box or cooler and keep everything cold until you need it. It's the ideal way to maintain freshness of your meals & snacks when you go on a picnic or camping, and you can use it for your school or work lunches. No need to constantly make ice at home, just refreeze as often as you need!