A set of super -powerful aluminum wheel cleaner and iron powder removal agent for professional skilled people. Drop the brake pad powder attached to the aluminum wheel in a short time.. Due to acidic, you need to be very careful when used, but if you use it correctly, it will be the best effect.. Please read the manual of the attached paper carefully before using it.. Apply while lightly rubbing the main liquid with a sponge on the part where the pad powder is attached.. It is more effective to use a brush etc. in combination according to the situation. If you rinse well with water immediately, you can get a lot of stubborn dirt.. * The main liquid is acidic. Do not use for sputtering paint, alumite painting, chrome plating, etc..