In extreme close quarters encounters where a suspect is attempting to take an officer's handgun or an officer cannot access his handgun, the Ka-Bar Serrated Knife is available as a last option knife. When the Ka-Bar law enforcement knife is worn on the pant belt, the entire knife and sheath are well concealed, giving the officer the element of surprise. A black metal belt clip and a knife sheath are included with this purchase. A sheath not only protects the knife when not in use but adds extra safety protection for the user. The 5-5/8-inch overall length allows for plenty of reach and thrust when you need it. The partially serrated blade folds back into the knife for storage. The Ka-Bar TDI knife is designed by John Benner, founder and owner of Tactical Defense Institute.