In the video, a person is seen holding a metal ruler and a metal square against a piece of wood. The ruler is blue and has measurements on it, while the square is black and has a golden screw in the middle. The person is using the square to draw a line on the wood, ensuring that it is straight. The wood has a natural grain pattern and is light brown in color. The person's hand is visible, and they are wearing a black glove. The background is blurred, but it appears to be an outdoor setting with greenery.