If u buy some useful marked cards devices from our company,such as all kinds of marked cards, infrared contact lenses,invisible ink and so on, please be careful when u use these products.It will help u win the game more easier.
firstly, watch out the distance between the marked cards and your eye or and the poker camera. Secondly,remember which light is not suitable for your marked cards.For example,under the sunlight the red mark can see clearly while the blue mark is blurry. Thirdly,make sure your contact lenses is being well maintain.
At last, if u have any question, u can contact us. And here are other poker cheating products in our company - Golden Sunshine
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