This Buyers Products Rubber Wheel Chock Set fits snugly under wheels to keep vehicles in place while they are serviced or parked. It is also ideal for ground support equipment or construction. The wheel chocks are attached together with a 3 ft. nylon rope for easy retrieval and placement. Each side has a stripe of bright yellow reflective tape for improved visibility. They are constructed of ribbed rubber and resist oil, rust, salt, and sun to provide years of durable use.