Rotational molding is a manufacturing process used to create hollow plastic parts. It involves placing a powdered plastic material into a mold, which is then heated and rotated along two axes. As the mold rotates, the plastic melts and evenly coats the interior surfaces, forming the desired shape. After the heating phase, the mold is cooled, allowing the plastic to solidify. Once cooled, the mold is opened, and the finished product is removed. This method is popular for producing items like storage tanks, toys, and automotive parts due to its ability to create complex shapes with uniform wall thickness.