Designed for all weather use, the Ultimate Survival Technologies BlastMatch Firestarter fire starting system performs superbly in the most extreme marine, arctic, desert, and jungle environments. The Ultimate Survival BlastMatch was designed for Air Force fighter pilots at risk of being shot down in rugged terrain, or the mountain climber contending with challenging alpine weather. It is a unique one handed fire starter that generates intensely hot sparks with minimal effort. In combination with Ultimate Survival WetFire tinder, an all weather starting tinder, you can start a fire even in the driving rain. Designed for all weather use in extreme conditions. One handed operation. Generates intensely hot sparks with minimal effort. Size: 4 in. closed. Wt. 2.7 oz.