bayite 3/8 x 4 Inch Drilled Survival Ferro Rod Flint Fire Starter with Toggle Lanyard Hole SIZE: 10mm x 100mm (approx 3/8 x 4 inch). Gives more strikes. Easy to hold and carry Hook the rod to anything with the 4mm drilled hole. The hole is a good place for DIY paracord lanyard and other accessories. WORKS IN ANY CONDITIONS: rain, snow, high-altitude, ultra-durable. Made of high-effective ferrocerium rod. Sparks shower at 5,500F (3,000C) to ignite a fire in any weather (even wet), at any altitude. Perfect for Bushcraft, Firecraft, Backpacking, Hiking, Camping, Hunting, Fishing, Bugout, EDC, Emergency, Survival, Campfire, BBQ, Gas Camp Stoves, etc. Can be used for the kitchen as well as survival. Not only for emergency bug-out bags, but also for gifts. Large size( 1/2&#039;&#039; thick) means plenty for your hands to hang onto. If you have large hands, we recommend the large size. The 3/8&#039;&#039;  4&#039;&#039; is big enough for easier strikes and small enough to carry. Scrape away the coating to expose shiny metal before first use. Hold the ferro rod close to the tinder at about a 45-degree angle. Place the scraper near the top of the rod. Pull the rod back (away from the tinder) with a slow and steady motion.