Question... would you use one of these to scrub the paint on the rest of your car? If so, I'm worried.I use a toilet scrubber. The bristles are sturdy enough to scrub with but it won't harm the finish. This was bought new BTW. Don't use old ones - you don't want toilet cleaner chemicals on your wheels.
Certainly wheels _are_ easy to damage if the wrong cleaner is used. One type of wheel that fits this area is non-coated aluminum. Using an acid based cleaner can etch the aluminum very easily. If nothing else the aluminum can be dulled over time.Honestly, they all seem to be the same. I have yet to come across a single wheel cleaner that didn't require some type of manual interaction to get the wheels clean.