In the video, we see a person's hands as they work on a machine. The machine has a large circular component with a hole in the center. The person is using a tool to clean the inside of the hole. The tool appears to be a metal rod or brush. The person's hands are dirty, suggesting that they have been working on the machine for some time. The machine itself is covered in grime and dust, indicating that it is used frequently. The person's movements are deliberate and careful, suggesting that they are experienced in working with this type of machinery.