Electronics cleaning brushes and brush kits are designed to reach hard-to-access areas in sensitive equipment. Brushes come with long or short handles and a variety of bristle head sizes, shapes and materials to accommodate different applications. Brushes can also be used to apply substances, such as glue or coating, to electronic surfaces. Common brush materials include horsehair and nylon. Anti-static brushes can be made of wood, hog bristle or goat hair.