What are these?


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I got my 2021 Civic Sport a few weeks back. I found these items in a bag in the trunk, along with the owners manual. I can’t find anything telling me what these are, or what they are for. I also cannot find a part number on them. Any ideas? 31658 31659


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Looks like some kind of plug. Cant say I am familiar with it. I would recommend calling the dealer and asking them since its fairly new.