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How do I determine the footing and fit of my Thule roof rack? - roof rack blueprints

I'm trying to sell a roof rack (the whole thing, the bolt, the clip things, and this thing locks shield against the wind, but I find this kind of cars that are, except the one that I bought that. I bought a Honda del Sol (1995). Someone please help me, or on a website or something. I'm totally confused, please.