Used extensively by the U.S. Army and the U.S. Air Force, the Air Force 499 Survival Knife is the standard against which other survival knives are measured. The Ontario 499 Air Force Survival Knife is made of carbon steel with a dull, rust resistant "Parkerized" finish. A leather handle with deep grooves on the 499 Air Force Survival Knife provides a good grip surface even when your hand is slippery. The butt end of the Air Force Survival Knife is made of steel so that it can be used for hammering and the cross guard has two holes in it, which enable you to construct a spear for protection and food gathering. The overall length of the Air Force Survival Knife is 9-1/2" with a blade length of 5". The sheath is leather with a belt loop and numerous holes which allow you to tie it down to just about anything and in just about any position. Specifications 5" Blade 9 1/2" Overall Length 1095 Carbon Steel Blade Natural Leather Handle Steel Buttcap Genuine Military Issue NSN 7340-00-098-4327 The Ontario Knife Company Air Force Survival Knife also has a metal reinforcing plate at the tip end and a pouch equipped with a sharpening stone. This is definitely a piece of no frills, inexpensive, survival grade gear! The Air Force Survival Knife by Ontario Knife Company is government approved under NSN 7340-00-098-4327.