Length: handle long 3CM， magnesium wreck flint leakage part about 7.5CMDiameter: Flintstone diameter 3.5MM， 8MM diameter booster materialWeight: 32 gramsUsage: blade scraped the right amount of material portion of combustion in a small pile of debris in hay， leaves or paper， rapid stroke spark ignition produce magnesium strip. When the flame produced by adding the stick thin， the flame can be formed.Features: waterproof， economical and practical， easy ignition Outdoor Flintstone， safest and most reliable tools to make fire.Suitable for outdoor camping use， the use of magnesium alloy ignition material (special treatment， good stability)， sheet metal side friction force can instantly send high temperature and high brightness spark ignition 5000-12000 times， high reliability and virtually any climate and adaptation under ambient conditions for camping， barbecue， heating added convenience. Other products are often affected by harsh environments. Such as pressure， oxygen content of the atmosphere， water， wind， and other factors.Super flint reliability has been making outdoor experts， hunters， anglers and campers favorites.