Wedding rings must buy a pair, rings can be different styles, but it must be a pair of two. Rings are the tokens exchanged between the newlyweds at the wedding, and are also the symbol and witness of marriage. The ring is usually worn on the ring finger of the new person, it is said that there is a blood vessel on the ring finger straight to the heart, and the new people will wear their rings on the ring finger of the other person, which means that the two people will be close to each other in the future.