After the cards are used in the casinos--generally for less than one shift. The cards are then sent to the prison in Nevada where the "residents" sort, and reseal the decks. We buy these decks sealed and we're not responsible for a missing or duplicate card on sealed decks.THESE CARDS HAVE A CORNER THAT WAS CLIPPED. THEY USE MARKERS ON THEM FOR SECURITY REASONS. OTHERWISE THEY ARE LIKE NEW WITH THE CASINO LOGO.If you are running an important tournament or high-stakes game, you should consider brand new decks.