In the video, a person is seen applying a white substance to the bottom of a window frame. The substance appears to be a type of sealant or caulking, and the person is using a tool to spread it evenly along the frame. The window frame is silver in color and appears to be made of metal. The background is not clearly visible, but it seems to be an indoor setting. The person's movements are steady and precise, indicating that they are experienced in this task.