Green Heavy Polishing Pad. This pad is used with a random orbital polisher (like the Porter Cable) It produces less spot heating and has a unique compression/load/deflection ratio which means it conforms quickly to contours. – Minimize grabbing and dissipates heat – Better application efficiency of compound and polish – Color coded for buffing pad aggressiveness – Center ring buffing pads – Hex face foam pads U.S. foam – 6″ Backing plate size – 7.5″ Diameter of contact surface