A nail brush is a small cleaning tool designed specifically for maintaining the cleanliness of fingernails and toenails. It typically features stiff bristles that help remove dirt, debris, and dead skin from under and around the nails. Nail brushes are often used in personal grooming routines and can be found in various materials, including plastic and wood. These brushes are commonly used in conjunction with soap or nail polish remover to enhance their cleaning effectiveness. Regular use of a nail brush can promote better nail hygiene and prevent the buildup of bacteria, contributing to overall hand health.