The video shows a close-up of a car's engine. A person's hand is seen holding a black belt and moving it around the engine. The engine is made of metal and has various components attached to it. The belt appears to be made of rubber and is being used to move the engine parts. The person's hand is steady as they manipulate the belt, indicating that they are familiar with the engine's operation. The video does not provide any audio or additional context, so it is unclear what type of car or engine is being shown.