Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Toyota Prius 2005

Missing the standard ball hitch in the box. I didn't realized it until I finished installing the tow hitch for hours. It was hard to install because of the holes are off centered and needed a tension bar to spread the ends to align the 4 holes. Good luck! It took 3 1/2 hrs instead of 30 mins. I need to contact amazon to deliver the missing item only. I don't need to return it.