Designed for floor polishing machines to Polish or restore or maintain for the floor of marble, concrete, terrazzo, granite. They are backed with Velcro, can be mounted on a rigid backer pad to fit on any floor machine. The high thickness provides extended life. Diamond Floor Revating( Polishing) Pads Characteristics: A. Easy and smooth Polishing. B. Long lifespan and stable performance. C. Good polishing result and high efficiency. D. And renovate your floor more clear.