The video shows a person using a sander to sand down the arm of a doll. The doll is lying on a wooden table, and the person is holding the doll's arm with one hand while sanding it with the other. The sander is moving back and forth over the arm, removing any rough or uneven areas. The person's movements are steady and controlled, ensuring that the sanding is done evenly. The wooden table is covered in sawdust, indicating that the sanding has been going on for some time. The doll's arm is a light beige color, and the sander is black and silver. The person's hand is visible, but their face is not shown in the video.