In this video, a person is seen using a pen to mark a piece of wood. The person's hand is visible, holding the pen and making a mark on the wood. The wood appears to be a light brown color and is placed on a surface that is not clearly visible. The pen used is blue and silver in color. The person's hand is steady as they make the mark, indicating that they are likely experienced in this task. The video does not show what the mark is for or what the final product will be.