Ranger Firelighting Flint , Gsa Approved Currently Used By The Us Marines And Us Airforce , Dependable & Effective , Extremely Compact Designed To Pack Into The Smallest Survival Kits , Scraping The Flint Produces A Shower Of Sparks Suitable For Lighting Tinder , Flint Is Specially Affixed With Magnesium To Produce , Hotter Larger Sparks , Size: 3 Inches , Weight: 0.5 Oz , Nsn: 5110-99-565-2549