'Cords' in the Bible

Then his servants said to him, It is said that the kings of Israel are full of mercy: let us then put on haircloth, and cords on our heads, and go to the king of Israel; it may be that he will give you your life.

So they put on haircloth, and cords on their heads, and came to the king of Israel and said, Your servant Ben-hadad says, Let me now keep my life. And he said, Is he still living? he is my brother.