A nail buffer is a small tool used to smooth and shine the surface of nails. It typically has a soft, cushioned surface and comes in various shapes, such as blocks or pads. Nail buffers help to remove ridges and imperfections, giving nails a polished appearance without the need for nail polish. Using a nail buffer is simple and can be done at home. To use it, gently rub the buffer over the nail surface in a back-and-forth motion. Regular use can enhance the natural shine of nails and promote healthier-looking hands, making it a popular choice in manicure routines.