Working on the same premise as the Original Spark-Lite™, the Micro SparkWheel™ is a small, reliable fire starter that will generate sparks in cold, wet, and windy conditions. Made of high-quality brass. An adjustable tension spring ensures a hot spark every time. It works great in combination with our Tinder-Quick™ Fire Tabs, available seperate. This unit is very small and will fit in almost any mini survival kit. It measures only 1.5" long x 7/16" wide x 1/4" deep, and weighs only 0.4 oz. It comes with three extra flints.