How big is the greeting card?

The most common size of greeting cards is 175mm* 125mm, which is a suitable size. The opening size is 175mm*250mm, which is the finished product size. The printed size on the length and width of the finished product is 20 mm. That is 195mm*270mm.

Extended data:

The origin of greeting cards

Origin Emperor Taizong used greeting cards to pay New Year greetings to ministers. Every Spring Festival and Spring Festival, from heads of state to ordinary people, there is a habit of sending greeting cards to relatives and friends. When did the greeting card, a special blessing medium, come into being, why has it spread so far, and what kind of development and changes have it experienced?

China's traditional culture attaches great importance to "ceremony", which was once the essence of China culture. Many contents in etiquette are expressed through forms, such as greeting cards. Giving greeting cards before important personal activities or public holidays is solemn in form on the one hand, and convenient for both parties to inform each other in advance on the other. So since the Han Dynasty, greeting cards have been preserved as a traditional form, but the name has changed.

References:

Baidu encyclopedia-greeting cards