When you want to know a certain card or some pieces of cards in a deck, you can mark it by using this marking ointment. You can put the ointment into pocket and smeer a little onto finger and let the ointment onto the poker, you will remember the position you marked and from a certain degree you can see the mark whilt others can not see. By doing this, you know the mark you did and then you know the card’s point and suit.
marking ointment : 1 pcs
Made in China
This device is widely used for private poker party, party gamble, casino, poker match, magic show.