GYT 939 Plastic Playing Cards

we use advanced printer marking technology and invisible ink to apply hidden marks on the backs of GYT 939 marked cards. These marks are invisible to the naked eye, ensuring players can identify cards without revealing them. The marks are durable and resistant to fading, offering long-lasting reliability. To see the marks, players need infrared contact lenses or poker glasses. This secure and efficient system allows players to gain a clear advantage during the game.