The Qing era heavy knife (Big Saber) as a whole symbolizes a dragon, which is divided into a dragon head, a dragon body, and a dragon tail. Several variants exist, ranging from patrol, strength development, to ceremonial applications. The oversized strength training versions of wrestlers are often made completely of cast iron. The iron ring on the back of the knife represents the weight of the Big Saber. The more iron rings, the greater the weight.