A nail buffer is a small tool used to smooth and shine the surface of nails. It typically consists of a block or pad made of soft materials, often with different grits on each side. By gently rubbing the buffer on the nail, you can remove ridges and create a polished finish without the need for nail polish. Using a nail buffer can enhance the appearance of both natural and artificial nails. Regular buffing can also promote healthy nail growth by improving circulation in the nail bed. Many people incorporate nail buffers into their manicure routines for a professional-looking result at home.