Non-woven Lighting Pad:It can remove glare pattern and slim scratches as well as light painting oxide layers,can be used for mirror treatment with fine polishing liquid. Square Medium Pad: Medium-Cutting wool pad,can be used with coarse or medium polishing agents,It can remove 1500/2000# sand scratches as well as moderate paint oxide layers. Stripe Heavy Pad: Extremely high cutting force removes 1200/1500# sandpaper marks, deeps scratches, over-painting, orange peel, and heavy oxide layer on the painting surface. One set (two) for sale Grainless——Lighting pad Double——Medium pad Single——Heavy pad 6 inch and 7 inch are beveled side, 6 inch sticky side is 5 inch, 7 inch sticky side is 6 inch.