This throwing knife also known as "Kunai" is thrown at something or someone to hurt in a battle. This causes violence but it is nessacary in war. Today, most of the people choose peace and harmony since war and destruction caouses alot of pain. This is a weapon to hurt and not to fiddled aroud with. If you still want it, then you can get it from the store. As I said before, not everyone chooses peace, there are a few people on this world who want to settle things down through violence. For those people, things never end well. If they escaped out of the situation then, maybe, they will be caught next time.
"*If we don't end war, war will end us!*"