Just put a match to this compressed trioxane bar and you’ll have instant fire. Used by our troops to heat their rations. Each box contains 3 bars in individual waterproof wrappers. Bars measure 3 1/2” x 1 1/2”. Each bar burns an intense flame for approximately 7 minutes. MADE IN THE U.S.A. We have discontinued shipping this item. In store pickup only. Limited quantities available.