Running boards are narrow platforms attached to the sides of vehicles, typically SUVs and trucks, to assist passengers in entering and exiting the vehicle. They provide a step-up surface, making it easier for people, especially those with mobility challenges, to access higher vehicle interiors. These boards can be made from various materials, including aluminum, steel, or plastic, and come in different styles and finishes. Some running boards are fixed, while others are retractable, extending only when the door is opened. They also add a decorative element to the vehicle's exterior, enhancing its overall appearance.