Flint Rod Size—Length:5.1”,Diameter: 1/2".Outstanding size allows it to withstand more than 18,000 uses. The material is also strong and durableMulti-function Scraper—Sawdust Scraper comes with a bottle opener, which is used for scraping sawdust. Flint Scraper is strong and sharp, which is used for scraping flint rodsSurvival Whistle—Survival whistle can reach 80 decibels, meeting the requirements of outdoor adventure survivalApplicable Scenes—Fire starter can be ignited under any conditions (even if it is wet). It is suitable for camping, hiking, hunting, backpacking, outdoor survival100% Satisfaction Promise—Aofar provide 2 years limited warranty and lifetime customer support