Material: Made of silicone carbide and electro coated that can suitable for both wet and dry use The product specifications are diversified to meet your various needs (walls, wood, knives, walls, wood products, etc.). The sandpaper is from coarse to very fine, which can make the work easier and more convenient. Bring you a better experience Package Included: -1 *120 Grit Sandpaper -1 *180 Grit Sandpaper -1 *240 Grit Sandpaper -1*320 Grit Sandpaper -1 *400 Grit Sandpaper -1 *600 Grit Sandpaper -1 *800 Grit Sandpaper -1 *1000 Grit Sandpaper -1*1200 Grit Sandpaper -1 *1500 Grit Sandpaper -1*2000 Grit Sandpaper -1*2500 Grit Sandpaper -1*3000 Grit Sandpaper -1*5000 Grit Sandpaper -1*7000 Grit Sandpaper -1*8000 Grit Sandpaper -1*10000 Grit Sandpaper Note: The sandpaper were manual cutting so there may be 0.4-1.2”/ 1-3 cm error of the physical.