Makes loading and unloading heavy boats and boards a breeze. The lightweight mount tilts down more than two feet from the roof rack, takes on up to 45% of the boat's weight, then helps gently raise it up to the top of the vehicle. Once loaded it securely cradles your boat or boards for the ride. At only 21 lbs. it's super lightweight but built burly enough to wrangle an 80 lb. load.