Professional sanding effect: sandpaper? 125 mm is composed of aluminum oxide granules. It is durable and anti-static and offers long-lasting and efficient sanding, which makes sanding work easier. High Quality Paper Base: The thick paper base in 8-hole design ensures that the sandpaper is not easily crushed during the polishing process. This prevents damage to the grinder by damaged sandpaper. Easy to change design: The sandpaper of the eccentric sander changes the sandpaper. Just attach the sandpaper to the machine, avoid changing the sandpaper inefficiently and save time. Big set: The eccentric grinder sandpaper contains 5 different grit size, 60 #, 80 #, 100 #, 120 #, 240 #. Large set with 20 slices of each grain size. A total of 100 sheets. Meets most polishing requirements. Widely Used: Sandpaper can be used on metal, wood, rubber, leather, plastic, stone, glass, etc. for perfect cleaning and polishing effects.