The video shows a close-up of a person's hand holding a black object, which appears to be a piece of plastic or rubber, over a white ruler with black markings. The person is using their thumb to press down on the object, causing it to bend and flex. The ruler is lying flat on a gray surface, and the person's hand is visible in the frame. The black object is being pressed down on the ruler at different points, and the person's thumb is applying pressure to the object. The video does not contain any other objects or people, and there is no visible text or subtitles.