PRO C-32 WHEEL BRIGHTENER : A strong, ready to use or concentrated (dilute up to 1:1) wheel cleaner designed for the removal of tough brake dust, metal particulates, road grime and dressing without scrubbing. C-32 is safe on OEM and chrome wheels. Especially effective on the hard to clean Mercedes Benz, BMW, Volvo and VW factory wheels. Powerful, Concentrated (1:1) Wheel Cleaner, Safe on OEM and Aftermarket Painted, Clear Coated and Chrome wheels, Hands Free Cleaning of tough Brake Dust and Road Grime, Quickly Brightens Surface without leaving Film or Residue. Available in Qt, Gallon and 5 Gallon sizes.