Knuckle Duster

Function: This model is an improved version of the Summoner. The granular texture cast on the plane and the rope add more grip! The thickness of the plane is thickened, and it is about 50 grams heavier than the Summoner. It is suitable for martial arts self-defense and life-saving. It is a tool that can be mastered without special practice. The handle of the product is wrapped with an umbrella rope, which can be untied for emergency first aid. It is a very practical product