These also fit the rear carpet panel in the trunk, and the inside C pillar trim near the quarter window and the Outside C pillar trim.

These are custom 3D printed OEM replacement. You get 4 clips per purchase, that’s enough for 1 headliner panel. There are 3 clips per C pillar trim inside and 3 clips per C pillar trim on the outside. The trunk carpet panel takes 4-6 im not 100% sure.

The clips go across the back of the REAR headliner section (the leather piece in most cars) these clips get broken when you try to improperly remove the panel by prying it out. The correct way to remove the panel is to “bump” it toward the front of the car. It slides off the clips, then the clips rotate 90 degrees and come right out. To reinstall, you put the clips into the panel, slide the front of the panel on the headliner the push up and snap the clips into the body.