GRAND MASTER MARKED DECK. We offer the best marked deck available. Easy to read and undetectable (you do not need special glasses or other hokey devices). You receive a marked BRIDGE SIZE deck and instructions on how to read the cards. Easy to read yet undetectable. - Read the identifiers of the cards directly without having to mark the card yourself. - Yes, No codes, No symbol to interpret, No marking system to learn. Hand out the deck without fear of detection. - Instant location ...