This beauty by Boker provides real self defense protection for the discerning executive or martial artist. From knife fighting expert Jim Wagner, the pen style look is extremely easy to carry and hides away nicely in a pocket in plain view and is quickly retrievable. Highly effective and functional as a kubaton & glass breaker plus the razor sharp blade punches and slices like its going through butter or clothing easily. Actually handy as a trimming knife as well as for other tasks around the house. Impact resistant plastic and 440C stainless steel. Liner lock, includes pocket clip. Overall: 5-1/4", closed 4", Blade: 1-5/8", Wt: 1.5 oz.