On the outside they look like cheap plastic, but after a few weeks of riding they look like clean metal caps (not as dirty as the aluminum caps I had previously). Of course, they look much better than the green plastic ones! Maybe they seem good to me because I spent $400 to replace a TPMS sensor that was damaged when the metal cover couldn't be removed. Compared to this renovation I would say it is great value for money. The crowd allowed me to share something with my parents, who were buying a new Lexus with chrome hubcaps, increasing my suspicion that this is collusion with the service department to ensure the need for costly repairs in the future.