50 centimeters. The dance "Yingshanhong" tells the heroic and fearless spirit of revolutionary martyrs in the form of artistic performance. According to JD.COM's platform, the ticket head of the fan used to dance Yingshanhong is 50 cm long. The dance "Yingshanhong" is a memory of that passionate time, an eulogy for countless revolutionary martyrs, and a pursuit of dreams and a happy life.