The object to be polished are clean and bright can be polishing tiny scratches, played an polishing effect as new with the polishing liquid, paste, powder use the effect will be better. These polishing sponges are reusable and can be washed by cold water after use. They can be used on pneumatic polishing machines and electric polishing machines. Wide Application: Used for waxing, polishing, sealing and cleaning of various coatings to improve their texture. Great for car and motorbike polishing.