Yiyi Pen cigarettes were discontinued in November 2006. Yi Zhi Pen has been integrated. This model is no longer available on Shandong China Tobacco’s official website. The Yi Zhi Pen brand is also gone. The price is also an embarrassing price of 30 yuan. The response in the national market is average. I heard that there are still many in Qingdao. of followers. Yi Zhi Pen brand cigarettes belong to Laobiao Gou Shen, which was born in the Qingdao Cigarette Factory in Shandong Province in the early 1940s. The main color of the appearance is golden sand color, with thin linen rope-like vertical lines in the background color. On the lid of the box are the company's logo and China's famous trademark. The three characters "Yizhi Pen" in the middle of the cigarette box are designed with dazzling hot stamping. The "Yizhi Pen" LOGO next to it is even more brilliant and bright. On the left side of the box are the physical and chemical indicators, and on the right side are the service phone number and product barcode. The barcode is dark red. The top is a very rare anti-counterfeiting technology. The laser pattern is like a butterfly spreading its wings, very beautiful.