The most common card size of poker is bridge. The size is 5.7 * 8.8cm, which is relatively suitable for Chinese hands. This size is also a card we can buy at will in most places today.

The 52 authentic cards are equally divided into a group of 13 cards, and each group is represented by four decors of spades, hearts, plum blossoms, and diamonds. The cards of each decor include 13 cards marked from 1-10 (1 is usually represented as A) and J, Q, K. The playing methods are ever-changing, and there are many kinds of playing methods, such as the typical playing method of fighting landowners.