Window blow out clips.Thisis the little rubber & steelpieces that hold the top of your door window in from allowing air to leak at hi speed. It is pop rivited to your Gm Seal retainer. This mounts at the top of the a-pillar. The rubber commonly falls off.
This is GM part # 20153291 discontinued by Gbodyparts in 2005.
Limited quantity available. Fits other makes & models as well.