According to the information you provided, there are two leaves on the filter of Shuangxi cigarette, which may be the filter design of "Shuangxi" brand. However, the price may change due to different regions and sales channels, and different double happiness products may have different prices.
It is suggested that you go to the local tobacco store or supermarket to check the actual products and get more accurate price and brand information. Besides, smoking is harmful to health. Please pay attention to the rational use of tobacco products and maintain a healthy lifestyle.