This Heavy Duty Couch Cushion Support Board is designed to fix sagging sofas, measuring 21.5 x 70 inches. Made of engineered wood, it is suitable for standard sofas and can support up to 400 pounds. The rejuvenator board included in the set provides supportive seating for adults, with a modern grey colour and a solid pattern. This rectangular prism-shaped seat pad features a boxed edge cushion style and requires no assembly. Perfect for indoor use, it is a versatile and durable addition to any living room or garden furniture set.