[Easy to Grind] The edges of this sandpaper conform to the curved surface, making it very easy to sand the surface of the object. Sanding discs and backing pads help sand faster and better. You can also cut a 3inch sanding disc to 2inch and stick it to a 2inch pad for easy sanding of tight areas. [High Quality] The sanding pad is made of premium aluminum oxide material, which is quick and easy to grind different surfaces. It works with most power and air tools, very convenient to use. [Reusable and Elastic] Sandpaper blocks are very resilient, not easy to tear, and are ideal for flat, edged, and contoured surfaces. It is easy to clean and can meet your different needs. [Widely Uses] This product is suitable for grinding and finishing on metal, wood, rubber, leather, plastic, stone and glass and more. It is also easy to remove wood and clean scratch and paint surfaces. [For All Your Needs] The package includes 10 pieces of each grit: 80 120 180 240 320 400 600 800 1000 1500 2000 3000 for a total of 120 pieces. They can meet your different needs.