Seven Pairs is a common traditional mahjong game in China, which usually doesn't need medals. In seven small pairs, the player wins by combining seven pairs of cards (pairs refer to two identical cards). The scores that players get in the game are usually calculated according to different cards and combinations, not medals. So seven couples generally don't need medals to play. It should be noted that there may be some special regulations in different regions and changes in rules, but most people who play directly do not need medals.