The silken kiswa cloth that covers the Holy Kaaba

The cover of Kaaba was draped on the early hours of Friday while millions of prospective pilgrims were standing at Mount Arafat.
Kiswah is changed annually on the 9th day of the month of Dhu al-Hijjah, the day pilgrims leave for the plains of Mount Arafat during the Hajj.
The kiswa is wrapped around the Kaaba and fixed to the ground with copper rings.