ITEM NAME:New 8Pcs Car Glass Scratch Removal Tool Cerium Oxide + Polishing Powder K7X8 Description&Preview.Universal Car Glass Scratch Removal Tool Cerium Oxide Powder + Polishing Pads. Cerium Oxide Powder: 230grams/8 Oz. Cerium Oxide is the best polishing powder to glass scrach because the chemical and physical reaction.