Zheng Xihong, 39 years old, is 1.58 meters tall, and has 1.40 meters long baird. When it's unbraided, the hair almost reach her ankle. She works in a bus dispatch station in Xi'an city, Shaanxi province. It usually takes her 40 minutes to wash hair and 20 minutes to comb hair. Someone ever want to buy her hair for 2000 Yuan, but she refused.