The basic form of the weapon is that of a pointed, rod-shaped baton, with two long, unsharpened projections (called yoku) attached to the handle. The very end of the handle is called the knuckle.
The sai's utility as a weapon is reflected in its distinctive shape. With skill, it can be used against a long sword by trapping the sword's blade in the sai's handle. If the user is skillful enough they may be able to fracture a blade or other weapon with the sai. There are several different ways of wielding the sai in the hands, which give it the versatility to be used both lethally and non-lethally. The sai is primarily used as a striking weapon or for short jabs. The sai also has many defensive uses in blocking other weapons.
Sai’s are NOT made for contact sparring and must be used under the direct supervision of a qualified Martial Arts Instructor. User assumes all risks and the use of Sai’s for contact sparring voids any product warrant.
