Developed on the premise that one arm has been injured or immobilized, the BlastMatch Fire Starter is a unique flint-based fire starter that can be operated with one hand. It generates an intense amount of sparks with minimal effort, will last up to 4,000 strikes, and works when wet.Features :Ignites a wide range of tinder including UST wetfire tinderSparks can be directionally targetedWorks in rain and other adverse weather conditionsBar rotates 360 degrees for even wearSafety button prevents accidental sparksSize (closed) LxWxD: 4.1 in x 1.4 in x 1 in (105 mm x 35 mm x 25 mm)Weight: 2.3 oz (65 g)