Trailer Side Kicks serve two purposes. First, they fit in front of a trailer's wheel wells to provide a tapered, protective guide between your vehicle's wheels and the trailer's steel wheel wells. Tall marker flags indicate their placement and help guide you onto the trailer without any scrapes or scratches. Second, Trailer Side Kicks can be used as ramps for changing a trailer tire. Simply drive the good tire onto the ramp and the flat tire will be lifted off of the ground for easy removal and replacement. Trailer Side Kicks lightweight but solid construction enables you to safely use them on any surface-pavement, grass, or even sand-without sinking. They are extremely durable and stable, supporting up to 8,000 pounds while weighing only 8 pounds each. They won't gouge, scratch, or otherwise damage your driveway or floor and will never rust