Solid fuel cubes for use in folding emergency stoves, etc. Approximately 15 minutes burn time per cube. Strong heat output, one cube will bring a pint of water to a rolling boil in about eight minutes. Can be lit with a match or lighter, can be extinguished for re-use. Packaged individually in water-resistant blister packs. No visible smoke or sparks. Can also be used to aid in starting a campfire. Package of 12 cubes.