This knife is called the WASP injector knife and it’s especially useful for hunters and divers. When a bear or a an angry boar get too close you will have to rely on knife to save your life. It’s not likely to happen no matter how good you are with a knife because such animals may still kill you even with the blade sticking out of them. The WASP delivers a massive burst of freezing, compressed air into the stab wound that is capable of stopping even the largest land and sea predators.
