This is a Double Happiness symbol made into keychain from brass and plated with gold.
The Double Happiness symbol, composed of two Chinese characters for “happiness” arranged side by side, is another time-honored symbol of marriage and conjugal happiness and reputed to be the most famous and powerful at it. If you look carefully, the two characters are linked together by two lines, which signify the inseparable bond between the lovers. The Double Happiness symbol is a talisman used in Feng Shui to enhance spiritual and physical love between two people; ideal for men or women searching for love, already in love or maintaining a steady relationships or marriage.
The Double Happiness Symbol will help you if you are looking for a romantic partnership or wanting your romance to become more serious. It would keep third party at bay and smoothen the path of romance. For couples who have been married for a long time, the Double Happiness symbol helps to renew their passion and love for each other.
Carry it along with you everywhere you go in your bag. Good romance and marriage luck will manifest. It will turn futile flirting into something tangible.