The classic version of the hook sword has the following design. The main part of the weapon is made in the form of a steel strip, one end of which is bent in the form of a hook, and the other end at the handle is pointed. In the area of the handle, with the help of two fasteners, a guard in the form of a Moon is attached, with its sharp ends directed outward. The front part of the blade, the concave part of the "moon" and the outer side of the hook were sharpened. The total length of the weapon is about 1 meter.
The Hook Swords were used mainly in pairs (hence the name). They are used to deliver chopping blows, hooks. Chopping and stabbing blows could be applied with the same moon guard, and stabbing - with a sharp end opposite to the hook. Sometimes the inner side of the hook was not sharpened, which allows you to use the grip on this part of the weapon and strike like an ax. It was possible to hook the shuanggou with hooks, and thus suddenly increase the attack distance.
In China, there were many analogs of the hook sword, which had other names due to their design functions. Nowadays, working with this weapon is practiced in some wushu schools, in particular, in Shaolin Quan.