Literature Reference: 侠客犹传朱亥名，行人尚识夷门道。—— 《古大梁行》 The name of Zhu Hai is still sung by knights-errant, and travelers recognize the road to Yimen. Source from 'Gu Daliang Xing'.
朱: Vermilion, a deep red hue; the name of a mineral; an ancient geographical location; and a surname.
亥: The last of the Earthly Branches, belonging to the Pig.
Meaning: Zhu Hai, a renowned knight-errant of the Warring States period, symbolizes chivalry and fearless spirit.