Jian (sword breaker)
The jian (simplified Chinese: 锏; traditional Chinese: 鐧; pinyin: jiǎn) or tie tian (鐵鐧 or 鐵簡, lit. 'iron slip'), also known as Chinese swordbreaker or Chinese truncheon, is a type of quad-edged straight mace or club specifically designed to break weapons with sharp edges.