A rug pad is a protective layer placed underneath a rug to enhance its performance and longevity. It helps prevent slipping, reducing the risk of accidents, and keeps the rug in place on various surfaces. Additionally, rug pads can provide cushioning, making the rug feel softer underfoot. Using a rug pad can also protect your flooring from scratches and wear caused by the rug's backing. They come in various materials, such as felt or rubber, and can be cut to fit any size rug. Overall, a rug pad is a simple yet effective addition to any rug setup.