What is the material of the second generation curved eyelashes in the third generation?

curved eyelashes of the second generation is Susu and Zhu Zhu, who are Song Yaxuan and Zhu Zhixin in the Youth League. This group is a China mainland men's singing group launched by Time Fengjun. In June, 222, the two of them danced with great interest in the dark Times Junfeng Square. The dance steps originated from Cyndi Wang's curved eyelashes. This scene was recorded by interesting fans and posted online, which instantly became popular.