Shurikens and Ninjitsu

Shurikens are known as flying stars. There are many types of shurikens such as Common Ninja shurikens and also the hira shurikens. The Hira shuriken had replaced tsubute which were used to break bones but they werent succesfull all the time and were used in many japanses battles. Then later on Hira shurikens had replaced tsubute and were used to tear through flesh and if thrown hard enough it could breake bones. Ninja shurikens were used by Ninja assasins and were one of the most useful weapons. They had 4 sharp hoks on them which tore through flesh and killed the target. They were used because they were silent fat and deadly and also easy to carry.