Includes 5 modular pieces: left-arm facing corner chair, 2 armless chairs, wedge and right-arm facing corner chair"Left-arm" and "right-arm" describe the position of the arm when you face the piecePieces can float anywhere; sides are finished (with no connectors)Corner-blocked frameLoose reversible cushionsSeat cushions with feather-fiber blend encasing a foam coreFeather/fiber blend back cushions and bolster pillowsPolyester upholsteryNon-skid legsPlatform foundation system resists sagging 3x better than spring system after 20,000 testing cycles by providing more even supportSmooth platform foundation maintains tight, wrinkle-free look without dips or sags that can occur over time with sinuous spring foundations.