Sandpaper

Sandpaper is a material with abrasive particles, like tiny bits of grit, bonded to a sturdy backing. It's used to smooth or remove surfaces such as wood, metal, or paint by rubbing it against them. The rough texture grinds away unwanted material, helping to achieve a desired finish or prepare a surface for painting or finishing. The coarseness of sandpaper varies, from very rough to very fine, depending on the job's needs. Essentially, it's a tool that uses friction and abrasion to modify surface textures efficiently.