57 Cards Plastics: Play Rook and Other Card Games PREMIUM ROOK CARDS: Made from fully plastic material, these cards are manufactured to last a long time. Play over and over with them, they continue to feel like new. WATERPROOF: Play rook or other card games with this deck by the pool, at the beach, or in the jacuzzi. You can even clean them if they get some coffee on them. BLUE BACKS: This deck of 57 cards has a blue colored back. PERFECT TO PLAY THE CARD GAME ROOK: Although these cards do not contain a bird, they do have a wild card that is used in place of a bird to play one of our favorite games Rook. So many variations of Rook to choose from. Visit our website for more descriptions of how to play. YELLOW, BLACK, RED, AND GREEN: This 2017 version has four colors in this deck. The four colors are the typical rook deck colors.