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Throwable Japanese concealed weapon A (Japanese:; literally: "covert 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 tossing stars, or ninja stars, although they were initially created in many different shapes. The significant ranges of shuriken are the b shuriken (, stick shuriken) and the hira shuriken (, flat shuriken) or shaken (, wheel shuriken, likewise read as kurumaken).
Bo-shuriken [modify] A Bo-shuriken is a throwing weapon consisting of a straight iron or steel spike, normally four-sided however in some cases round or octagonal in area. Some examples have points on both ends. The length ranges from 12 to 21 cm (5812 in) and the average weight from 35 to 150 grams (1.
4 ounces). They need to not be confused with the kunai, which is a thrusting and stabbing carry out that is often tossed. Bo-shuriken were built from a wide array of everyday items, and as such came in numerous sizes and shapes. Some derived their names from the materials of which they were made, such as kugi-gata (nail form), hari-gata (needle type) and tant- gata (knife kind); some were named after an object of comparable appearance, such as hoko-gata (spear type), matsuba-gata (pine-needle form); while others have names that are purely detailed, such as kankyuto (piercing tool kind), kunai-gata (utility tool type), or teppan (plate metal) and biao (pin).
The significant throwing approaches are the jiki da-ho (direct-hit method), and the han-ten da-ho (turning-hit method). These two are technically different, in that the previous does not enable the blade to spin prior to it hits the target, while the latter needs that the blade spin. Four antique forged Japanese bo shuriken (iron throwing darts with linen flights) Other items such as hairpins, kogata (utility knife), and chopsticks were included the same way as bo-shuriken, although they were not associated with any particular school of shurikenjutsu.
This is partly because shurikenjutsu was a secret art and also due to the fact that throughout early Japanese history there were many independent exponents of the skill of tossing long, thin items. The earliest-known referral to a school mentor shuriken jutsu is to Ganritsu Ryu, active during the 17th century.