Using this rack is easy. First, make sure your tow ball is either 50 mm or 1 - 7/8'. Then, attach the rack to the tow ball. Use the supplied bungee cords to secure your bikes on the rack. Make sure the bikes are stable before you start driving. When it comes to storage, simply fold the prongs to save space. For maintenance, clean the rack regularly with a mild detergent and water. Check the powder - coated finish for any signs of wear and tear. Avoid using abrasive cleaners as they can damage the coating. And always double - check the connections and bungee cords before each use to ensure safety.