I recently traded in my 2019 Honda Ridgeline RTL with 18K Miles on it.
I removed the Tonneau Cover and Floor Mats prior to the trade in. My loss is your gain.

The Tonneau Cover and floor mats were purchased new by myself in September of 2020 for over $1200.
Tonneau Cover comes with both rails, cover and all necessary hardware. I even accidentally kept 2 of the tie downs they get mounted to! Attached in the pictures are the drain tubes made from a previous post from this forum.
Asking $500, but open to all offers. Can meet somewhere halfway if you'd like. Located in Rockaway, NY. Also I can email more pictures through private message if necessary.

Driver Floor Mat has minor wear from daily use.
Passenger and second row floor mat are immaculate

BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover
BAKFlip Product # 448602
Fits 2017-2022 Honda Ridgeline 5' 4" Bed
Premium Matte Finish

Husky Liners Weather Beater Floor Liners
Front Row and Second Row