MULTI-GRIT PACK: 100pcs 40 60 80 100 120 180 240 320 400 800 grit 5in sanding discs, assortment pack from rough to fine satisfying your most sanding and polishing requirements, suitable for random orbital sander, such as Bosch ROS20VSC 3725DEVS ROS10, DEWALT DWE6421K DWE6423K, Ryobi RS290G, Makita BO5041K, PORTER-CABLE 382, Black & Decker BDERO100 and more GOOD SANDING EFFECT: Open-coat produces an even and consistent scratch pattern, special stearate coating offers better surface finishes, and perfect cleaning and polishing effects ALUMINUM OXIDE SANDPAPER: Sanding pad features good abrasion resistance, anti-static and anti-clogging, ideal for grinding and finishing on non-metal, wood, rubber, leather, plastic, stone, glass and other materials