A wedding ring is a ring given to a person at the time of their marriage. It serves as a symbol of love, commitment and fidelity between two people who are married. The tradition of wearing a wedding ring dates back centuries and it is worn on the left hand ring finger because ancient Greeks believed that there was a vein in this finger which ran directly to the heart. Wearing a wedding ring is usually done by both partners as a sign of their love, commitment and unity. It can also be used as identification if needed.