Corner-blocked frame Attached back and reversible seat cushions High-quality foam cushions wrapped in poly fiber 4 toss pillows included Polyester upholstery; polyester pillows Exposed turned feet with faux wood finish 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