Maxxtow Towing Products 70043 Magnetic Trailer Alignment Kit
These Maxxtow telescoping posts with foam balls on the end let you perfectly connect your trailer by yourself every time. The posts have magnetic bases, attach one to your ball hitch, the other on your trailer and adjust them so they are of the same height. When the foam balls are aligned, your hitch and coupler are too. Perfect for boats, RVs, campers and more.