Good Material: Made from alumina granules, which is durable and antistatic, it can provides long-lasting and efficient sanding, makes sanding easier. Assorted Sanding Pads: 10 different grits sandpaper (40/60/80/100/120 /180/240/320/400/800 Grits,each grit 10pcs total 100Pcs), assort from rough to fine satisfying your polishing requirements for perfect cleaning and polishing effects. 150mm sanding discs for random Track sanders: 150mm in diameter, pre-punched with 6 holes for dust extraction, Hook and loop backed, suitable for all 150mm random Track sanders. Widely Used: Applied to materials such as metal, non-metallic materials, leather, plastic, wood, rubber, stone and glass, for perfect cleaning and polishing effects. Material:Alumina colour:Red Package Contents: 100 * Sanding paper set