In the video, a person is seen using a thin black tool to cut a piece of cardboard. The cardboard is brown and appears to be on a wooden surface. The person is holding the cardboard with one hand and using the tool to make precise cuts. The tool seems to be a craft knife or a similar type of blade. The person's movements are careful and deliberate, indicating that they are experienced in using the tool. The video does not show the final product or the purpose of the cutting, but it is clear that the person is skilled in their craft.