The video shows a person's hand holding a tool and using it to turn a valve on a machine. The machine has two gauges, one on each side of the valve. The gauges are circular with a needle pointing to the pressure level. The person uses the tool to turn the valve, which causes the needle on the gauges to move. The gauges are red and white, and the tool is black and orange. The person's hand is visible, but their body or face is not shown.