Ercol 355 Studio Couch/Day Bed Cushion Foam Set Back Foam Details: 3.5 inches deep Softer Premium Foam with StockinetteErcol 355 Studio Couch Back Foam Set - BACK FOAMS ONLY SKU: 2036£70.00PriceQuantity*Add to CartBuy NowPRODUCT INFOA set of three 3.5 inch deep Premium Soft Back Foam cushions. All of our foam cushions are fully compliant with UK safety and flammability standards.