Atlasta Alloy Wheel Brush With Firm Bristles ! The Daddy when it comes to removing heavy build up on heavily contaminated wheels. 

An acid resistant Firm bristled brush for use on alloy wheels,
Reaches difficult to reach areas
To be used with alloy wheel cleaner
Gets your alloy wheel looking like new again
Used by the professionals in the valeting trade for years. 

Atlasta Alloy Wheel Brush