In the video, a person is holding a glass flask with a yellow liquid inside it. The flask has a narrow neck and a wider base. The person is holding the flask by its handle and tilting it back and forth, causing the liquid to swirl around inside. The background is dark, and there are no other objects visible in the frame. The person's hand is steady, and they seem to be carefully controlling the movement of the flask. The yellow liquid inside the flask appears to be viscous, and it moves slowly as the flask is tilted.