I see you are new to the forum so I want to be friendly, so, Welcome.
This post needs to be in the Members marketplace section, probably posted under the Miscellaneous subsection. To make it easy for you, here is that subsection: https://www.supramkv.com/forums/miscellaneous.64/
In addition to that, you need to follow the forum marketplace rules (photo of the marketplace rules below) so people don't think you are a scammer, particularly rule #2 with your username handwritten on a piece of paper.
Also, you're using the photos posted from @stormgreysupra 's OEM Plus mods website which looks super suspicious instead of your own. Rule #1 says you need to post photos of the item you're selling. Not the stock photos from the website.
Additionally, people are going to want to know if this is the outdoor or indoor car cover. They are also going to want to know if this is the one for no/duckbill, the MKIV wing, streethunter style or 45th anniversary style wing and if it is the regular or premium cloth material.