Ideal for sanding and polishing wood, rubber, leather, plastic, stone, glass, and other materials.Widely used in the grinding and polishing of metal and non-metallic materials of various complex surface rust.40-60 grain are used for coarse sanding of rough surfaces, 80-120 grain are suitable for surface smoothing and sanding of small roughness, 180-320 grain are good for final fine sanding.Uses: derusting and polishing ships, metallurgy, furniture, stainless steel, automobiles and other manufacturing industries. Item Name: SandpaperQuantity: 50/100PcsMaterial: AluminaGrit: 40, 60, 80, 100, 120, 150, 180, 240, 320 (Optional)Application: Hardware/Electronics/Automobile/Mobile Phone/Glass/Furniture/Ceramic/ShipFeatures: Durable, Wear Resistant, Multi-purposeSize: 140mm x 90mm/5.91" x 3.54" (Approx.) Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:50/100 x Sandpaper