I ordered these, I was tired of sticks and leaves getting in my radiator, I was afraid that one day I would puncture it on the way. Despite being plastic, they look pretty solid. I gave it 5 stars for adhesion because they don't actually use glue to stick, they use tension clamps. They snap on really well and if I ever want to take them off I don't have to worry about cleaning up the pile of old glue rings on the front of my grill (which I also plan to repaint at some point). I bought some matte black headlight frames and they look great on my blue TJ Patriot Jeep. If you look closely you will see that the grille has a slight curve just over halfway down the length, this is accommodated and makes for a really nice seamless grille insert that offers extra protection.