The 4-Person ER Easy Replacement Pack contains supplies to replace expired items from any 4-Person Survival Kit including those for the home, office, vehicle and classroom. Kit Includes: (4) Emergency Food Bars, (24) Water Pouches, (30) Water Purification Tablets, (2) 12-Hour Green Lightsticks, (1) 12-Hour Yellow Lightstick, (1) First Aid Kit Replacement Pack