Extrema Ratio Kukri Black 18 1/2 overall. 13 1/2" black finish N690 stainless cobalt steel blade. Black Forprene handle. Black nylon belt sheath with leg straps and removable shoulder strap." 19 1/2" overall. 13 1/2" black (Testudo) finish N690 stainless cobalt steel blade. Black Forprene handle. Black nylon belt sheath with leg straps and removable shoulder strap.