Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tarnishes really easily

I got this as a gift for my boyfriend who is a big giants fan and he was really excited. We put on his car and it looked pretty good next to his silver trimmed accents. Not the best match, but we were ok with it. About a week or two of use and the whole thing turned black! the worst thing about it is his car is black so you can't even see it that well if you didn't mind the black :( disappointing