The scuff ball is made of a scotch brite style material. Utilized in light removal of oxidation on metal. This is another item that attaches in a drill for ease of use. The ball is most commonly used to remove oxidation in the water ring, the holes of the wheels and in between the lugnuts on a mounted wheel. These have been used by metal polishing professionals since the dawn of time. After completing the sanding process with the ball you can jump into using a Cone Buff.