One to one sunglasses and one to one marked cards
One to one sunglasses means that it is the only poker reader for one to one marked cards. Likewise, one to one marked cards can only be read by one to one sunglasses.
This advantage make sure that your poker cheating process are absolutely safe and concealable. No one will detect your tricks even though he wear the marked cards sunglasses too. One to one marked cards are marked with the unique invisible ink on the back of marked cards which is invisible for the other marked cards glasses. Thus, one to one sunglasses are the most useful and safest poker cheating devices for poker players to cheat in poker game.
Using one to one sunglasses and one to one marked cards cheat at poker game is really awesome and concealable. You should have a try.