You can buy it in Tiananmen Square. It is about 7 kilometers from the center of Beijing, and you can take subway 1 line, line 2, line 5 or bus. Hada is a silk fabric used by Mongolian and Tibetan people for etiquette, and it is an essential item in social activities. Most of the long silk scarves or scarves used to show respect and congratulations are white, and there are colorful Hada, the colors are blue, white, yellow, green and red.