Okinawa Kobudo Tonfa or Tunkwa

The Tunkwa (トンファー) is more known by its chinese name  Tonfa.
The Tonfa is still used by numerous police forces around the World.
Tunkuwa was originaly handle of a millstone used for grinding grain.  Tonfa is manufactured in red oak and its size dépends of forearm length.
Tonfa allows powerful blocks and counter-attacks. It is great complement to Karate-Do by improving punch techniques and strength.

Katas (カタ) :

Tunkawa Kihin Ichi
Matayoshi no Tunkuwa dai ichi
Matayoshi no Tunkuwa dai ni

 

Here is below the basic Tonfa kata  Tunkwa Dai Ichi (Koburyu):