Are the chrome wheel skins on a 2010 Silverado steel wheel metal or plastic? I took a magnet to them and it's slightly attracted. Not sure if it's the skin or the steel wheel that's causing the attraction. I recently had new tires put on and then they removed the original wheel weights it lefts big dents and scratches on the skins. I personally like the look of the wheels, but I'm not a big fan of the damage from the weights.