Freehand design refers to the process of creating visual designs using pencil and paper or other analog tools, rather than using digital design software. It is often used as a way to quickly sketch out ideas or concepts, and can be a valuable tool for brainstorming and prototyping. Freehand design can be a useful part of the design process for product teams because it allows them to quickly and easily explore different ideas and get a sense of how they might look and feel.