In the video, a person is seen using a metal ruler and a pencil to mark a piece of wood. The person is holding the ruler against the wood and using the pencil to draw a line along the edge of the ruler. The wood appears to be a light-colored, rectangular piece, and the ruler is silver with black markings. The person's hands are visible, and they are wearing a dark-colored shirt. The background is not clearly visible, but it seems to be a workshop or a similar setting.