The Vieng market opened at midnight of the 7th lunar day and lasted only through to the morning of the 8th day.
According to popular belief, anything bought at the market will bring good luck to the buyer for the whole year.
The spring market displays handicraft products, genuine antiquities alongside fakes, home utensils, tools for agricultural production, and many kinds of ornamental plants. Specialties are grilled veal and "banh day" (sticky rice cake).