Check the listing for details. 15Pcs 4.5" Scour Flap Discs 180 & 320 & 600Grit Sanding Discs for Angle Grinder. Condition: New, Made in United States. Listed at 29.67 USD. Feature:Size: Outer Diameter: 4-1/2inch (115mm), Aperture: 7/8inch (22mm), Thickness: 0.7inch (17mm), Coating Width: 1inch (25mm).Performance: This is a scotch-brite flap disc designed to be used on an angle grinder, it's great for sanding down paint coats or scraping something off without completely scratching what you're working on!How to Use: Recommended for flat use, not designed for tilted use or use of edges, maximum speed 12,500 RPM, and 600 ~ 6,000 RPM recommended for general use.Long Service Life: The upgraded abrasive surface adds more material to make the surface wider and thicker, ensuring a better and more even and fluffy sanding is provided.Mixup Grit:The 15-piece mix combinations of 180Grit, 320Grit and 600Grit offer the best price for.