Give your sagging furniture a refreshed look and new life with the Miles Kimball Black Vinyl-Covered Furniture Saver and Seat Support. Our furniture support panels are foldable to fit various pieces of furniture, eliminating the sag that naturally occurs over time. Each panel is covered in black vinyl that gives it plenty of durability. The couch support under cushions panels are available in three sizes of 22 by 19 inches for a chair, 44 by 19 inches for a loveseat and 66 by 19 inches in a sofa.