THEATER 500 series: how do I mount the speaker covers?

The following THEATER 500 series speakers come with fabric speaker covers that hold to the speaker magnetically:

Floorstanding T 500 F 16,

Center T 500 C 16,

Dipole T 500 DL/DR 16

Bookshelf T 500S FR 16

Please hold the cover in alignment with the speakers and turn them carefully until the cover sticks to the internal magnets.

For example on a THEATER 500S: