Our company has been engaged in the long-term collection, development, and research of various Mahjong and poker techniques, high-tech cheating devices from Hong Kong, Macao, Taiwan, and mainland China. We have also taken pictures of some products for each customer's detailed reference. However, entertainment is one thing, and we warn every friend that gambling fraud is rampant, for the sake of your family and yourself, remember that the sea of gambling is boundless, and the only solution is to quit.