In the video, a person is seen using a roller to apply a substance onto a surface. The substance appears to be a purple-colored liquid, and the person is using a roller to spread it evenly across the surface. The person is wearing gloves and is working carefully to ensure that the substance is applied evenly. The roller is being used in a back-and-forth motion to cover the entire surface area. The video is shot in a close-up view, focusing on the person's hands and the roller as they work.