1.Cerium Oxide is the best polishing powder to glass scratch because the chemical and physical reaction. 2.Easy to use,just mix powder with water and apply to the glass surface with the polishing felt to restore lightly scratched windows, mirrors, tabletops, windshields,glass tables, shower screens, windscreens, fish tanks, even car headlights to like-new condition. Product Name: 8pcs Polishing Kit Pad Max RPM:12000 Suggested Instructions for Use of Cerium Oxide: (1)Supplies Needed: 1.Cerium Oxide 2.Water (Some recommend distilled water) 3.Polishing Wheel 4.Electric Drill 5.Small Plastic Tubs (Pint or quart size) 6.Spray Bottle colour: white Material: felt Package Contents: 1 x 120g cerium oxide powder 1 x 2cm felt polishing wheel 1 x 3cm felt polishing wheel 1 x 3inch felt polishing wheel pad 1 x 8mm drill bit adapter 3 x 3inch diameter wool polishing pad Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.