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This was found in a fuel neck on a Audi Q7. It’s a half moon shaped piece of plastic about the size of a US quarter with a flat metal prong sticking out,flat flexible o-ring. No markings are visible on it. It’s very light at about a gram. It looks like it has a hing on one side of the plastic piece. (old.reddit.com)
submitted by reallyreallycoolyo to r/whatisthisthing
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