This is a Copper Grove Chuhuiv Full/Queen Button-tufted Upholstered Headboard in a light beige color. Fully assembled, excellent condition used lightly in a very clean, non-smoking house.
63.5 In. X 3.0 In. X 54.0 In.
This link provides the details and specs for the same headboard, same size in white fabric. The one I have is the beige fabric and if you swipe through the photos at the link you'll see an image of the beige one. https://www.bedbathandbeyond.com/Home-Garden/Copper-Grove-Chuhuiv-Full-Quee...
I also attached a photo of the one in my home (the one leaning against the wall).

Headboard-beige tufted fabric (Curtis Park)