Features:* brand new and high quality.*Made from Aluminum Oxide, the sandpaper is and anti-static enough, good for all sanding and polishing*Come with 10pcs sanding discs in 100mm/4 diameter; 2 pieces of each grit: 60/80/120/180/240*6mm diameter shank backing pad, M10 Thread suitable for smoothing inside and outside curved edges, preparation and fit for most small rotary tools*Open-coat produces an even and consistent scratch pattern, special stearate coating offers better finishes, and perfect cleaning and polishing effects*Can be used for polishing, such as metal, plastic, aluminium and wood, good wear resistance. artificial stone, furniture and wood products, metal, automobile.Specifications:*Materia: aluminium oxide, polyurethane*Sanding Paper Diameter: 4 inch/100mm*Backing pad Diameter: 4 inch/100mm*Thread Size: M10*Grit: 60/80/120/180/240, each 2pcs*Max. Speed: 12000RPMPackage Contents:1*Sanding Pad1*M10 Thread Adapter10*Sanding DiscsNotes:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.