Funeral customs differ in time and location. There are different customs in different regions of China, among which inhumation is very common. Usually for this kind of funeral, the family members of the dead shall wear mourning dresses, which shall be made in five different materials according to how close the relationship is with the dead. This is called "five-rank sable". A funeral hall shall be arranged in the house, with scrolls of cloth hung up and elegiac couplets pasted. Then relatives, friends and neighbors may condole in front of the coffin in the funeral hall. Usually the memorial ceremony will last for over seven days.