7oz (200g) 99% Cerium Oxide Glass Polishing Powder (7-9 Um) – Removes: Oil Films, Water Spots, Swirl Marks, Wiper Streaks, Removes Fine Scratches & Deep-Cleans Glass Surfaces Professional Glass Polishing Powder Cerium oxide polishing powder is formulated to eliminate light scratches, water spots, oil film, wiper marks, and haze from glass surfaces, aiding in restoring clarity and transparency.