The first step is to insert the rods into the black sleeves. In order to make the rods hide from view, they have to be a bit shorter than the width of the tapestry.

Inserting the rod into the top sleeve

Once the rod is inside the sleeve, it should be out of view

The next step is to add the hooks on the wall, and then rest the top rod (which is inside the sleeve)
on top of the hooks

At the end, the tapestry should be hanging with the rods hiding