Measures 5" closed. Black anodized aircraft-grade aluminum housing. Features liquid-filled compass making accurate navigation a breeze, built-in striker and flint bar reliably create sparks to light your tinder, serrated edge can be used to scrape shavings off a magnesium bar like the UST MagBar (sold separately) or to scrape bark for tinder and black beaded ballchain. Compact design is easy to carry.