Multicolored lines are called multicolored longevity lines in ancient times. Dragon Boat Festival was originally a girl's festival, and it is China's Daughter's Day.

This is an ancient custom in the Song Dynasty, wearing colorful immortal wisps. Red, green, yellow, white and black thick silk threads are twisted into colored ropes and tied around the girl's arms and neck, which are called long life strands and long life strands. It is this custom that Yu Youding, an Amin, said that "five lives can be sustained" in "Song of the Imperial Capital for Five Days".