Wonder Wheels Colour Active is an acid-free wheel cleaner suitable for use on all wheel types, including those requiring extra special care such as chrome, unlacquered, split rims, anodised and damaged wheels. Colour Active easily removes baked on brake dust, road grime, dirt, grease and oil quickly and effectively with no brushing required and minimal effort. The technologically advanced cleaning process occurs with the aid of an active indicator which turns the wheel red as it reacts with and dissolves the dirt & brake dust. The product can then be washed off after 5 minutes, and dirty, dull wheels will be transformed back to their original, sparkling, showroom shine.