The hangings of the Holy Ka'bah are anything that are hung inside it on its walls, or the hooks that are fixed on its three pillars and in between. They may also be in goods or in the form of written documents.
The caliphs, princes and wealthy people used to send gifts in kind to the Holy Ka'bah. These gifts were hung inside it and became its property. These included utensils made of gold and silver, plates inlaid with sapphires and pearls, jewels, precious stones, and so forth. (l2)
The Messenger of Allah (blessings and peace be upon him) kept all the belongings in the Holy Ka'bah except the pictures and statues. (14)