I do a lot of track days and these are great for getting into a variety of wheel styles i use on the car, multi-piece wheels, flat spoke wheels, concave spoke wheels etc. The bristle brushes are great for getting in the nooks, but the Lug Nut brush is the king of nooks and crannies. They scrub the tires and wheel faces well, but the Woolie is great for the barrels and behind the spokes where its a pain to get the big brushes in. I also have a few different finishes on my wheels ranging from paint, powder coat, polished aluminum and anodized aluminum, these are fine to use on any of those. Mix in the wheel cleaner and your golden!