Product informationFeatures:Size: Adhesive sanding disc 6 inches 100 pcs 500 GritMaterial: Aluminum oxideAdvantage: Premium paper for finishing as well as heavy stock removal. Durable aluminum oxide grain delivers a fast, exceptionally long-lasting cut.Product Usage:Aluminum oxide sanding discs are wear-resistant and anti-static which offer maximum resistance to clogging and loading to increase your productivity and reduce material consumption . Used on automotive, marine, RV, industrial, woodworking & more and so on.Using Tips:40-60 Grit Sandpaper is fairly coarse - Heavy Sanding and Stripping80-150 Grit Sandpaper is fairly medium - Removing Tiny ImperfectionsOver 240 Grit - Delivering a Super Fine Smooth Finish．