In extreme close-quarter encounters where a suspect is attempting to take an officer's handgun or an officer cannot access his or her handgun the TDI knife is available as a "last option" knife.When worn on the pant belt the entire unit (knife and sheath) is well concealed.This knife was designed by John Benner founder and owner of Tactical Defense Institute.Ka-Bar TDI 2.31" Tactical Defense Knife5.62" Overall Length1.25" Blade WidthBlack FinishAlso featured is a hard plastic sheath and reversible black metal belt clip (1480CLIP).Thise TDI Knife fits a maximum belt height of 1.75" width of 1.25" and thickness of 0.25". Order your Ka-Bar TDI knife online today!Searching for a different blade model? Find great deals on all in-stock Knives for sale available in all styles from the brands you know and trust!