OSREN Brake Dust Cleaner, engineered with unique iron particle remover, is a pH balanced cleaner suitable for all types of wheels. It works by dissolving brake dust like hot knife through butter. OSREN Brake Dust Cleaner will react and dissolve brake dust, turning them purplish pink and dislodges effortlessly with a rinse of water. OSREN Brake Dust Cleaner is the easier, faster and safer way to clean your wheels! Features & Functions: pH Neutral formula that reacts, dissolves and dislodges brake dust off all wheels easily without any hard scrubbing.