"Kobudo" literally means "ancient martial ways".
In the karate world, it generally refers to those traditional Okinawan
weapons whose history and practice has been linked to that of karate.
Most Okinawan styles have at least some kobudo/kobujutsu curriculum.
The most common kobudo weapons and the ones most often taught by
Okinawan karate systems are the bo, the sai, nunchaku, the kama,
and the tuifa/tonfa.
. Bo - staff, usually a rokushakubo or "six foot staff",
although 4, 9, and 12 foot staffs are also used.
. Sai - three-tined iron clubs, usually carried as a
set of 3.
. Nunchaku - two short tapered wooden clubs,
connected at the narrow ends by a short rope or chain (a flail,
as well as other uses).
. Kama - a sickle, used singly or in pairs;
. Tuifa/Tonfa - a club with a hand-length perpendicular
handle, the ancestor to the police PR-24; usually used in pairs.
Less common weapons are:
. koa - a hoe.
. eku - a boat oar.
. tekko - essentially brass knuckles.
. shuchu - a small kubotan-like thing about 5" long.
. san-setsu-kon - the 3-section staff.
. surujin/suruchen - a weighted chain with a spike or blade
on one end - similar to the Chinese chain whip or the Japanese
manrikigusari; tinbe - actually, this is two weapons...the tinbe itself,
which is a small shield traditionally made of the shell of a sea tortoise,
and the rochin, which is a short spear with a cutting blade - the weapon
actually resembles a Zulu spear more than anything else.
. kusarikama - a kama on the end of a rope or chain.
. nunti - a short spear.