Suitable for Angle Grinder Tools:Our wool polishing wheel are designed for use with 4.5 inch and 7/8 arbor on all models of angle grinders. Before purchasing a wool felt polishing wheel disc make sure the mandrel size and outside diameter match your angle grinder Premium Construction: Features high-quality wool felt flaps with 0.19-inch thickness for efficient polishing and buffing performance High Resilience and Strength: Our wool felt flap polishing disc features a thickened design, ensuring exceptional durability and a long service life for all your polishing needs Widely Applicable: Suitable for grinding and scratch repair of various material surfaces such as metal, glass, ceramics, marble and furniture. Whether it is repairing the wear marks of metal products, restoring the smoothness of glass and ceramic surfaces, or repairing fine scratches on the surface of furniture, it can show excellent results Reusability and Cost Efficiency: This wool felt flap disc is reusable and cost effective, making it a smart choice for polishing enthusiasts