In the video, a person is seen using a tool to adjust the tension of a bicycle wheel. The person is holding the tool in their right hand and using it to turn a bolt on the wheel. The tool appears to be a wrench or a similar type of adjustment tool. The bicycle wheel has a black tire and silver spokes. The person's hand is visible in the frame, and they are wearing a ring on their left hand. The background is blurred, but it seems to be an indoor setting with a white wall.