Mainstay Emergency Food Ration Bars (Sample Packs)18x400 Calorie Meals Mainstay Emergency Food Ration Bars (Sample Packs)18x400 Calorie Meals US Coast Guard approved, 5 Year Shelf Life, withstands temperatures of -40 F to 300F Sample package contains 1200/2400/3600 calorie rations sample bars Non-Thirst Provoking, No cholesterol or tropical oils 6 Day Emergency Survival Food Supply (18 Servings 3x400cal/per/day)