Knockers are not only decorative accessories hung on heavy wooden doors, they have a special cultural connotation. Women inside houses had to wear the hijab in the presence of people outside the close family members knocking on the door. There are two hammers on each door leaf, each having a different shape and a different tone. The circular one has a lower sound, indicates that a woman is standing in front of the door. The heavier, larger handle has a higher sound and tells us it is a man visiting the household.