This supportive parking companion keeps the Force trailer dolly level while transporting and connecting to your trailer. It eliminates the need to manually hold the dolly in place while installing the ball mount for a seamless connection process. Once your trailer connection is secured, the wheel will hover off of the ground, allowing the Force trailer dolly to move over varying terrains and grades with ease! The Third Wheel Adapter provides all the movement and none of the limits. As if it wasn't easy enough already!