Duplicate Bridge is played with a pack of 52 cards, consisting of 13 cards in each of four suits. The suits rank downward in the order spades (♠), hearts (♥), diamonds (♦), clubs (♣). The Cards of each suit rank downward in the order Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, 2.
The Regulating Authority may require the face of each card to be symmetrical.
The backs of all 52 cards in a deck should be identical. They may incorporate words, a logo or a pictorial design but the image used should possess a centre of symmetry.