The video shows a close-up of a person's hand as they work on a mechanical device. The person is using a tool to adjust a small metal piece, which they move back and forth. The device appears to be made of metal and has various components, including a spring and a small metal piece that the person is adjusting. The person's hand is steady, and they seem to be experienced in handling the tool and the device. The background is blurred, but it appears to be a workshop or garage setting.