Package Included: 4 Nylon Fiber Shutters (2 Red + 2 Green); Size: Outer Diameter: 100mm (4"), Hole Diameter: 16mm (5/8"), Thickness: 15mm (3/ 5 inches), coating width: 25 mm (1 inch). Angle grinder can be installed. Elastic grinding: The nylon fiber flap polishing wheel has super elasticity, can fully contact the product workpiece when grinding, is not easy to slip, and can effectively prevent excessive cutting from scratching the surface of the workpiece. Long service life: self-sharpening grinding, the fibers are continuously lost during the grinding process, and new abrasives are continuously formed naturally, providing consistent processing quality for the workpiece, high grinding efficiency and long service life. The non-woven grinding disc nylon pad has the characteristics of anti-clogging, waterproof and oil-proof, and wet grinding. Industrial scouring pad nylon fiber louver is mainly used for surface coating treatment of metal, wood and other materials, mechanical maintenance and cleaning such as cleaning, polishing, derusting, deburring, and high-quality appearance decorative line processing.