Mahjong, originated in China, is commonly known as the sparrow in Guangdong, Hong Kong and Macao. It is a game game, entertainment appliance invented by the Chinese ancient people, a small long square made of bamboo, bone or plastic. It is engraved with patterns or words. The northern mahjong is 136, and the Southern mahjong are more than 8 cards, respectively, spring, summer, autumn and winter, plum bamboo and blue chrysanthemum.

Four Bones Play is popular in Chinese cultural circles.
Asset is clean and easy to use.