In the video, a person is seen holding a brush and applying a dark substance to a piece of metal. The person uses the brush to spread the substance evenly across the surface of the metal, ensuring that it covers the entire area. The substance appears to be a type of paint or coating, and the person seems to be applying it with care and precision. The metal piece is rectangular in shape and has a shiny, metallic surface. The brush used is medium-sized with a silver ferrule and a black handle. The person's movements are steady and deliberate, indicating that they are experienced in this task. The background is not visible, focusing the viewer's attention solely on the action of applying the substance to the metal.