Brass Knuckles are a unique way to add some power to your punch. Sometimes called "knuckle dusters" or "knucks" these pieces of metal or even hard polymer can be easily carried in a pocket and gripped to add a knock out force to your punch. The legality of carrying brass knuckles is always a hot topic. We recommend to change with your state legislature before carrying brass knuckles or any other type of device designs to increase the power of a punch.