MACHINED FROM SOLID AIRCRAFT ALUMINUM MADE IN THE USA - 5000 DEGREE SPARKS!********** The bottom half of our Famous Patented Aurora Fire Starter. This simple fire starter is an economical alternative for our customers on a budget. Created and manufactured by Solo Scientific in the USA to be used to start your campfires. Simply scrape the rod with your knife to create a shower of 5000 degree sparks. Our Solo Scientific Ecco Fire starter will work in any environment that will support life! Works wet or dry! ********** Overall length - 3"********** Diameter - 5/8"********** Rod Diameter 1/4"********** Key chain/lanyard hole