FAST assisted opening action-just flick the stud on back spine of the knife for instant blade deployment! Biohazard Zombie Survival Gear "The Horde" Assisted Opening Rescue Knife- 5" closed linerlock. 3.5" black stainless steel part serrated blade with recurve cutting surface and Biohazard Zombie Survival Gear etch. Green & black Zombie graphic handles. Seat belt cutter and glass breaker with lanyard hole. Metal pocket clip.