In the video, a person is seen working on a wooden board. The person is using a yellow tool to measure and mark the board. The tool appears to be a combination square, which is used to draw straight lines and angles on the board. The person is seen adjusting the tool and making marks on the board, indicating that they are likely measuring and marking for a specific purpose, such as cutting or assembling. The person's movements are precise and deliberate, suggesting that they are experienced in using the tool. The wooden board is light-colored, and the tool has a yellow handle and a metal ruler. The background is a workshop setting, with various tools and materials visible.