These are designed to assist you to see where your trailer is positioned, when reversing your trailer down the boat ramp without the boat on.
A Stainless Steel Quick fit connector is fitted to your trailer (15mm Hole required - Some trailer makes have this size hole in the tread plates)
When you come up the boat ramp to get your car/trailer, simply get this aerial out of your boot and plug it into the quick fit fitting
and you will now be able to see exactly where your trailer is posistioned at all times
When you have retrieved your boat and are up on the ramp tying it all down etc, simply unplug the aerial and place it back in the boot for next time (comes apart for compact storage = 750mm)
will be approx 1.5m high with a flag on top when fitted
