In the video, a person is holding a clear plastic bottle filled with water. The person is shaking the bottle vigorously, causing the water inside to splash around. The bottle appears to be a standard size, with a narrow neck and a wider base. The water inside the bottle is clear, and the person's hand is visible as they grip the bottle. The background is not visible, as the focus is on the bottle and the person's hand. The person continues to shake the bottle throughout the video, causing the water to move around inside.