Boker Plus 01BO560 M Type Knife, Black G10, PlainEdge. The Boker M Type Folder knife, designed by self-defense expert Chad Los Banos, features a 3.525 hollow ground modified drop point blade with a slight recurve and top swedge grind made of 440C stainless steel. The blade has a non reflective bead blast finish, a grooved thumb rest and dual thumb studs for ambidextrous one hand opening. The handle, 4.66 closed, has a deeply checkered black G-10 scale with texture notches, a stainless steel frame lock, and a lanyard hole. Includes an end to end reversible clip. Overall length: 8.1875. Weight: 4.6 ounces.