A roller application is a method used to apply various substances, such as paint, adhesive, or coatings, onto surfaces. This technique involves using a cylindrical tool, often called a roller, which is covered with a material that absorbs and distributes the substance evenly. Roller applications are popular for their efficiency and ability to cover large areas quickly. This method is commonly used in painting walls, flooring installations, and craft projects. Rollers come in different sizes and textures, allowing users to choose the best option for their specific needs. Overall, roller applications provide a smooth finish and reduce the time required for surface treatment.