GP11009 Felt Polishing Pad Set for Polishing Glass, Plastic, Metal, Marble/Diameter 4.5 inch/Pack of 5 Pads Diameter: 4.5 inch / Thickness 4mm / Pack of 5 Pads GP-PRO Polishing Pad - Professional grade pad made of needle-felt with a fiber-blend of polyester and rayon fibers thermally bonded. High resistance pad with black velour to one side gives an excellent grip against the backing pad. Very versatile able to withstand high temperatures and friction levels. Ideal for cutting and polishing action resulting in high gloss finish on a range of surfaces such as Glass, Plastic, Metal, Stone and Minerals.