Why do shurikens have a hole in the middle?

Question

dosent seem to serve a purpose and the extra weight should make it better

Answer 1

It makes it easier to hold or pick them up without running the risk of cutting yourself.

Answer 2

Maybe it is there to serve as a means to store them easily, like on a wire or string.  So when they are not in the ninjas pouch they can be stored easily and collected, without having to try and pick them up flat and cutting yourself in the process.  

Hope this helps mate :-)

Answer 3

Because a machine bore a hole through the middle of it.

Answer 4

u can string 'em on a piece of cloth & wrap 'em up for carrying, unravelling the packet like an ammo belt to let fly in quick succession... look out!

Answer 5

that's how they're carried.

wikipedia edit-

Hira shuriken are constructed from thin, flat plates of metal from a variety of sources, such as hishi-gane (coins), kugi-nuki (carpentry tools), senban (washers), and as such do not generally look like what is usually conceived of as the ninja star. Often they have a hole in the center, are only sharpened on the very tips and possess a fairly thin blade. The reason for the hole is that the original source items had holes - old coins, washers, and nail-removing tools, each possessed holes as part of their design. This was found to be convenient for the user of the shuriken, as they could be carried strung together on string, and the hole also had an aerodynamic effect which aided the flight of the blade as it was thrown. In some schools the hole was used as a center reference, a sort of "pointing spot" for the overhead throwing method. Usually with a common four point hira-shuriken the index finger was placed slightly in, or on the edge of the hole parallel with a point. When released during the overhead style throw the finger would be in a pointing position and increase accuracy.

Answer 6

Well, Maybe it gives balance!!!