Review on Liquid X Original Wheel Woolies Brushes 3 Piece Kit - Angled Caliper Spoke Brush - USA Made - Black - New & Improved: Ultimate Wheel Cleaning Toolset by Mike Roe

These cleaners are amazing! They are very soft and I cleaned my complex discs quickly. My Cadillac has polished rims with so many little grooves. I have an ATS-V with Brembo brakes and they generate a lot of brake dust. These brushes worked great even when my front windows were practically black (it's winter now so it's been 2 months since I last cleaned the windows). They're expensive, but they're worth it to me. Typically, cleaning discs takes as long as washing a car. I would say I reduced the time it takes to clean hard drives to 1/3 the time. I also like the angled brush to get a "lip" that goes all the way around the edge.