●9 grit sizes: 80 120 180 240 320 400 600 800 1000 ●4.9 inches (125 mm) in diameter, mesh polishing material, and unobstructed advantages ●Flannel on the back, Velcro for the sander, very convenient to remove and replace granularity ●Strong polishing power, decorative finish, cleaning purposes, and deburring ●Widely used for wood polishing, metal and resin polishing