Wikininja
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Throwing Spikes
Center

Range

Medium

Rarity

Uncommon

Size

8 in.

Use

Ranged Attacks


Bo-Shuriken are a throwing weapon consisting of a straight, iron or steel spike, usually 4-sided but sometimes round or octagonal in shape. They are usually single-pointed, but there are some that are double-pointed. The length of bo-shuriken ranges from 12 to 21 cm (5–8 1/2 in) and the average weight was from 35 to 150 grams (1.2–5.4 ounces). The bo-shuriken is thrown in a number of ways, such as overhead, underarm, sideways and rearwards, but in each case, the throw involved the blade sliding out of the hand through the fingers in a smooth, controlled flight. This is not to be confused with the kunai, which is a farming implement.

The major forms of throw are the jiki da-ho (direct hit method), and the han-ten da-ho (turning hit method). These two forms are technically different, in that the former does not allow the blade to spin before it hits the target, while the latter requires that the blade spin before it hits the target.

Bo-shuriken were constructed from a wide variety of everyday items, and thus there are many shapes and sizes. Some derive their name from the materials they were fashioned from, such as kugi-gata (nail form), hari-gata (needle form) and tanto-gata (knife form); others are named after the object to which they appear similar, such as hoko-gata (spear form), matsuba-gata (pine-needle form) while others were simply named after the object that was thrown, such as kankyuto-gata (piercing tool form), kunai-gata (utility tool form), or teppan (plate metal) and biao (pin), and thus were very easily concealed.

F11034s

Kogai Hairpin

Other items were also thrown as in the fashion of bo-shuriken, such as kogai (ornamental hairpin), kogata (utility knife) and hashi (chopsticks), although these items were not associated with any particular school of shurikenjutsu, rather they were more likely just thrown at opportune moments by a skilled practitioner who was skilled in a particular method or school.

Spikes and spike like implements such as kogai hairpins were used to create footholds and handholds in masonry, used in sequence with kaginawa grappling hooks, according to the Shoninki shinobi manual.

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Gear

Throwing Weapons
Shuriken Grenade Bo-Shuriken Blinding Powder
Bladed Weapons
Wakizashi Katana Yari Shikomizue
Ranged Weapons
Bo Staff Bow Blowpipe Arquebus
Equipment
Medicine Grappling Hook Caltrop Stone Pencil
Clothing
Straw Hat Chain Mail Disguise Tenugui
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