[Sparkland]

It certainly looks like this one from Honda, but as mentioned it is aging. It was expensive in its day.

Tonneau Cover Ridgeline Honda Accessory - $1,212.61

Honda Parts at HondaPartsDeals.com: Honda Accessory, Honda Car Parts, Honda Auto Parts, Honda Accord Parts Tonneau Cover(Ridgeline) [Honda Accessory] - This system provides a two-piece hardtop cover with lockable storage. The tailgate can still b...

www.hondapartsdeals.com

SOLD: OEM Honda Ridgeline Hard Tonneau Bed Cover (Iowa)

OEM Honda Hard Tonneau Bed Cover (08Z07-SJC-102). Currently installed on my 2013 Ridgeline. Will come with all hardware necessary to install. Works fine, just prefer to go without a cover. Fits 2006 - 20014 Ridgeline. $300 obo. Located in central Iowa.

www.ridgelineownersclub.com

 

[Sparkland]

Wow thank you!
They are asking $375, what do you think is a fair offer?

You definitely won't find a cheaper one, unless you bump into one on Craigslist or FB Marketplace. Personally, I think $350 is steep and would offer him $225 and end up at $250. Hopefully, all the parts are functioning properly. You would want to check that out before purchase.