5 inches long and 1/2 inch diameter. Huge ferrocerium rod/ferro rod/ firesteel/ man made flint and steel, fire starter. The ferro rod is five inches long, you get a good grip to easily start you fire. Ferro rod has 3/16" lanyard hole, it is big enough for 550 paracord. This ferrocerium rod gives off hot sparks at temperatures of (3,000 degrees F) Includes high carbon steel striker. The striker is hardened to HRC 59-60. The striker does an excellent job at scraping off material from ferro rod, we hand sharpen each striker for sharp 90 degree edges.