The video shows a close-up of a person's hand holding a ruler and a pen. The person is using the pen to draw lines on the ruler, presumably to measure and mark specific lengths. The ruler appears to be made of wood and has black markings. The pen is a standard ballpoint with a clear body. The person's hand is steady, and they seem to be experienced in using the ruler and pen. The background is blurred, but it appears to be a workshop or crafting area.