Invisible ink uv light with glasses
Invisible ink is one kind of magic stealth ink. You can write on the paper, and then it will disappear. How to see invisible ink on paper? You can read markings by infrared contact lenses. What is more, you can apply invisible ink to poker playing cards which is luminous marked cards. How to make invisible ink appear back marked cards poker without heat? Luminous colored lenses and marked cards glasses can help you.
You need to know that invisible ink including infrared invisible ink and UV invisible ink. All you could do is to write marks on playing cards and then read marks by the help of invisible ink contact lenses or invisible ink glasses.