Absolutely disappointed...if this is an extra large backrest it dies not provide the height nor the width for a comfort fit. The little roll pillow is just that...little, no real foam support.. to see the supposed original price of this item is questionable as it is not even worth the sale price.  Would bevavhassle to return as the box it came in is squished with delivery. Not much support with this and it does not support complete back for a 5'7" person..very disappointed.  Makes me leary shopping on Wayfair