These are some sandpapers, made of , they are and hardness. Used for polishing various metals, iron, aluminum, wood, ceramics, artificial stone, furniture and wood products, metal, etc. Perfect and wonderful for cleaning and polishing in the home, excellent and reliable for you. Features -Color: Assorted color -Material: Carborundum, aluminium oxide -Size: About 12.50X12.50X0.10cm/4.91X4.91X0.04in -Suitable for polishing hard and tough objects, such , wood, walls, etc. -The developed binder improves the wear resistance and softness of sandpaper, make sandpaper not easy breakable and more . -The anti-clogging coating on the surface can avoid the clogging of abrasive particles and maximize the performance of the sanding discs. -Fine workmanship of our products you a and delicate details. -Perfect and wonderful for cleaning and polishing in the home, excellent and reliable for you. Package list: 5 x sheets of 1000 grit 5 x sheets of 2000 grit 5 x sheets of 3000 grit 5 x sheets of 4000 grit 5 x sheets of 5000 grit