It can chemically dissolve and wash off unwanted residue that is created by high-speed rotation and heating of brakes. The bubble jet type does not allow the fluid to drip off and the cleanser permeates residue with high efficiency, displaying its high performance cleaning capability. It does not damage the sensitive material of the aluminum wheel because abrasive compounds are not included. The included sponge helps you remove any unwanted residue and makes cleaning hard to reach parts easy