The video shows a close-up of a person's hand holding a red stick, which is being used to clean the inside of a car's gas tank. The person is using the stick to push around the inside of the tank, presumably to remove any dirt or debris that may have accumulated. The gas tank appears to be clean, and the person is being careful not to damage any parts of the tank while cleaning it. The video does not show any other part of the car or the person performing the cleaning.