The video shows a person using a tool to mark measurements on a piece of wood. The person is holding a pen in one hand and a tool in the other hand. The tool is used to make a mark on the wood, and the person then uses the pen to draw a line along the mark. The person repeats this process several times, making multiple marks on the wood. The wood is light-colored, and the tool is black and silver. The person's hands are visible, and they are wearing a white shirt. The background is a wooden workbench with various tools and pieces of wood scattered around.