The Tesmat privacy screen for Model Y is made up of 2 pieces: a separate rectangular rear hatch back cover, and the remaining screen that is sewn to the storage pouch.
Remove all the fabric and pass the 6 suction cups through the 6 black grommets.
Attach the 2 carabiner clips to the 2 silver grommets.
If the suction cups are deformed from shipping, you can return them to their original shape by placing them in boiling water for 5 minutes.
Watch the following set up video to learn how to install your privacy screen in your Model Y: