The 7 inch X-Large FLITZ Büff Ball is perfect for large flat surfaces like fire trucks, boats, semis and airplanes. It is also great for elevator doors and railings. The 7 inch X-Large FLITZ Büff Ball quickly & safely buffs out brake dust, scuff marks, light scratches, oxidation, chalking, tarnish, pitting & corrosion. It is power-rated for speeds up to 2500 rpm. The The 7 inch X-Large FLITZ Büff Ball is self-cooling and won’t scorch or burn. It won’t tear like foam buffers when hitting sharp edges. There is no exposed ball hardware to scratch surfaces. Plus, the Ball is washable and reusable.