In the video, a person is using a sander to smooth out a blue surface. The sander is black and green in color and is being held firmly in the person's hands. The person is moving the sander back and forth over the surface, creating a smooth finish. The blue surface appears to be a wall or a board, and the sander is being used to remove any rough spots or imperfections. The person's hands are steady, and they seem to be experienced in using the sander. The video is shot in close-up, focusing on the action of sanding.