The video shows a person using a tool to adjust the tension on a belt in a car engine. The person is wearing a black jacket and is standing in front of the engine. The belt is black and is connected to the engine. The person is using the tool to turn the belt and adjust its tension. The engine is made of metal and has various components attached to it. The person is focused on the task and appears to be experienced in using the tool. The video provides a close-up view of the belt and the tool, allowing viewers to see the details of the process.