... of Pure Wool 2, For glass, metal, wood Polishing 3, Felt Wheel, Cone, Point, Felt WheelWool Wheel, Woolen Wheel1. Absorbing oil stains2. Density0.14g/cm3 ... mineral impurities It's used in several polishing applications. To polish glass, cars, glass utensils, crystal, marble, jade ware, etc. wool & felt polishing wheel