This three-in-one polisher/finisher removes blemishes and scratches with the blace area: smoothes and removes paint with the white area, and buffs to restore high gloss finish with the gray area. WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection.