The Military Ration Heating Trioxane Fuel Bars are essential for military personnel in the field, providing a convenient and compact way to heat rations and other supplies during outdoor adventures. With a total of 9 bars included in 3 boxes, these ration heating bars are designed to meet the high standards set by the MIL-F-10805C specification. Made in the United States, these bars are a reliable and practical choice for collectors of militaria or outdoor enthusiasts looking for a durable heating solution.