Our medium sized fire starter is constructed with a 3/8" x 4" ferro rod that is rated for 35,000 uses. It has a 3 1/2 " hardwood handle and sports a 3" paracord tying and skull bead. A scraper tool is also attached. This is the prefect size ferro rod for most uses. It is large enough to be easy to use yet still small enough to be put in a back pack or bug out bag. Performance is spectacular. Minutemen Fire Strikers feature premium ferrocerium rods and are the "sparkiest" on the market. You'll be amazed with the shower of 3500 degree sparks they throw.