That's the "Charcoal" color, and Arizona, the light has to be "clearly visible from 500ft" which is up to the interpretation of the officer to enforce -- but is at most a 'fix-it' ticket which you can just get another set of taillights, show them to an officer, and put the other taillights back in.
The material is odd to say the least -- it's stretchable but stretches back slowly. If you heat it it gets VERY pliable depending on the heat. I left it next to my halogen flood lamp to heat it up once and it got so pliable it felt like t-shirt cotton material, but as soon as it cooled down it got stiff again.
When I put it on the corners, I just heated and pulled/stretched it around the corners. As it cooled, it would stay where I left it. I came back the next day and heated/pulled it a little more until there were only tiny wrinkles on the BACKS of the curved edges. All the little bubbles and water marks are evaporating out, which is kinda odd to see change every day.
To me it was worth it to pay the extra couple bucks to make sure I did it right the first time, even if it meant more cutting and stretching to get it right. YMMV.
