The invisible ink pen can help you mark cards easily. If you have a this magic pen, you can mark the marked cards as you need for your poker playing cheat at any time. Now, I will introduce this pen to mark cards by yourself in an easier and simple way.
The invisible ink pen is the most easiest and simplest way to mark marked poker cards by yourself. The pen filled with the invisible ink will offer you an effective way to mark the invisible marks on the back of cards. One pen can be used for marking cards about 60 decks. The marked cards are excellent for poker gambling cheat. Our naked eyes can not read the invisible marks and only the IR contact lenses or IR sunglasses can read them. With the marked cards in your games, you can master the games under your control by meas of an easy way. Just mark poker cards by yourself with the invisible ink pen.
If you take an interest in this magic pen, please have a try to use it to mark poker cards conveniently as you need.