Corner-blocked frame High-quality foam cushions wrapped in poly fiber Loose seat and reversible back cushions Polyester velvet upholstery Throw pillows included Pillows with soft polyfill Chrome-tone metal feet Assembly required Platform foundation system resists sagging 3x better than spring system after 20,000 testing cycles by providing more even support Smooth platform foundation maintains tight, wrinkle-free look without dips or sags that can occur over time with sinuous spring foundations