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Throwable Japanese concealed weapon A (Japanese:; literally: "surprise hand blade") is a Japanese hidden weapon that was used as a covert dagger or metsubushi to distract or misdirect. They are also understood as throwing stars, or ninja stars, although they were initially created in various shapes. Go Here For the Details of shuriken are the b shuriken (, stick shuriken) and the hira shuriken (, flat shuriken) or shaken (, wheel shuriken, also checked out as kurumaken).

Bo-shuriken [modify] A Bo-shuriken is a throwing weapon consisting of a straight iron or steel spike, normally four-sided however often round or octagonal in section. Some examples have points on both ends. The length varies from 12 to 21 cm (5812 in) and the typical weight from 35 to 150 grams (1.
4 ounces). They need to not be confused with the kunai, which is a thrusting and stabbing implement that is often tossed. Bo-shuriken were built from a wide array of everyday items, and as such can be found in lots of shapes and sizes. Some obtained their names from the materials of which they were made, such as kugi-gata (nail kind), hari-gata (needle form) and tant-gata (knife type); some were called after an object of comparable appearance, such as hoko-gata (spear form), matsuba-gata (pine-needle form); while others have names that are simply detailed, such as kankyuto (piercing tool kind), kunai-gata (utility tool form), or teppan (plate metal) and biao (pin).
The significant tossing approaches are the jiki da-ho (direct-hit technique), and the han-ten da-ho (turning-hit method). These two are technically various, in that the previous does not allow the blade to spin before it strikes the target, while the latter requires that the blade spin. Four antique created Japanese bo shuriken (iron throwing darts with linen flights) Other products such as barrettes, kogata (utility knife), and chopsticks were included the exact same way as bo-shuriken, although they were not related to any particular school of shurikenjutsu.
This is partly due to the fact that shurikenjutsu was a secret art and likewise due to the reality that throughout early Japanese history there were many independent exponents of the ability of throwing long, thin things. The earliest-known reference to a school mentor shurikenjutsu is to Ganritsu Ryu, active throughout the 17th century.
