Traditionally given at Chinese New Year as gifts usually with money.
Money envelopes filled with money are only given by married couples to children or anyone who are still single and unmarried.
Red envelopess can also be used to give money for birthdays, weddings or any other special occasions.
This particular design with the New Year Boy and Girl is for Chinese New Year printed with the chinese words 'Good Health' and Kung Hei Fat Choy' and 'Prosperity'.