A brush is a tool used for applying, cleaning, or smoothing surfaces. It typically consists of a handle and bristles made from materials like nylon, natural hair, or synthetic fibers. Brushes come in various shapes and sizes, designed for specific tasks such as painting, cleaning, or grooming. In art, a paintbrush is essential for artists to apply color to their canvases. In personal care, a toothbrush helps maintain oral hygiene by cleaning teeth and gums. Brushes are versatile tools found in many fields, including cosmetics, housekeeping, and crafting.