A paintbrush is a tool used for applying paint, ink, or other mediums to a surface. It typically consists of a handle and bristles, which can be made from natural or synthetic materials. The shape and size of the bristles can vary, allowing for different techniques and effects in painting. Common types of paintbrushes include flat, round, and filbert, each serving a specific purpose in art. Artists use paintbrushes to create various styles and textures in their work. The choice of brush can significantly impact the final appearance of a painting. Proper care and cleaning of paintbrushes are essential to maintain their quality and longevity, ensuring they remain effective for future projects.