Conveyor belt sidewalls are raised edges or walls that are attached to the sides of a conveyor belt. They provide additional containment and support for materials being transported on the belt, preventing spillage or product loss. The sidewalls can be made from various materials such as rubber, PVC, or urethane, and are typically designed to withstand the specific requirements of the application. By increasing the height of the belt edges, conveyor belt sidewalls improve the efficiency and effectiveness of the belting system by ensuring that materials stay on the belt during transportation.