A brass knuckle is a weapon that fits on a finger. This blunt design concept is to reduce the contact area between the fist and the impacted surface, increase the pressure, and cooperate with the quality of the brass knuckle to cause more serious injuries. Brass knuckles are usually made of metal, but they are also made of plastic and carbon fiber. The form of brass knuckle is also provided with spikes and blades at the outer end. Some rings can also act as brass knuckles.
Compared with other weapons, brass knuckle is special. Take the Dao as an example. When the unarmed people get the Dao, their fighting methods change immediately; However, brass knuckle will not change the fighting style of empty handed users. Brass knuckle is an auxiliary weapon, but in any case, brass knuckle is still a despicable and shameless weapon.